diff --git a/clang/lib/Driver/ToolChain.cpp b/clang/lib/Driver/ToolChain.cpp
@@ -1307,9 +1307,14 @@ void ToolChain::AddCCKextLibArgs(const ArgList &Args,
 
 bool ToolChain::isFastMathRuntimeAvailable(const ArgList &Args,
                                            std::string &Path) const {
+  // Don't implicitly link in mode-changing libraries in a shared library, since
+  // this can have very deleterious effects. See the various links from
+  // https://github.com/llvm/llvm-project/issues/57589 for more information.
+  bool Default = !Args.hasArgNoClaim(options::OPT_shared);
+
   // Do not check for -fno-fast-math or -fno-unsafe-math when -Ofast passed
   // (to keep the linker options consistent with gcc and clang itself).
-  if (!isOptimizationLevelFast(Args)) {
+  if (Default && !isOptimizationLevelFast(Args)) {
     // Check if -ffast-math or -funsafe-math.
     Arg *A =
       Args.getLastArg(options::OPT_ffast_math, options::OPT_fno_fast_math,
@@ -1318,8 +1323,14 @@ bool ToolChain::isFastMathRuntimeAvailable(const ArgList &Args,
 
     if (!A || A->getOption().getID() == options::OPT_fno_fast_math ||
         A->getOption().getID() == options::OPT_fno_unsafe_math_optimizations)
-      return false;
+      Default = false;
   }
+
+  // Whatever decision came as a result of the above implicit settings, either
+  // -mdaz-ftz or -mno-daz-ftz is capable of overriding it.
+  if (!Args.hasFlag(options::OPT_mdaz_ftz, options::OPT_mno_daz_ftz, Default))
+    return false;
+
   // If crtfastmath.o exists add it to the arguments.
   Path = GetFilePath("crtfastmath.o");
   return (Path != "crtfastmath.o"); // Not found.

diff --git a/clang/lib/Driver/ToolChains/AIX.cpp b/clang/lib/Driver/ToolChains/AIX.cpp
@@ -376,9 +376,7 @@ void AIX::AddOpenMPIncludeArgs(const ArgList &DriverArgs,
       addSystemInclude(DriverArgs, CC1Args, PathOpenMP.str());
       break;
     case Driver::OMPRT_IOMP5:
-      LLVM_FALLTHROUGH;
     case Driver::OMPRT_GOMP:
-      LLVM_FALLTHROUGH;
     case Driver::OMPRT_Unknown:
       // Unknown / unsupported include paths.
       break;

diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -7262,10 +7262,15 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
   Args.addOptInFlag(CmdArgs, options::OPT_frelaxed_template_template_args,
                     options::OPT_fno_relaxed_template_template_args);
 
-  // -fsized-deallocation is off by default, as it is an ABI-breaking change for
-  // most platforms.
-  Args.addOptInFlag(CmdArgs, options::OPT_fsized_deallocation,
-                    options::OPT_fno_sized_deallocation);
+  // -fsized-deallocation is on by default in C++14 onwards and otherwise off
+  // by default.
+  if (Arg *A = Args.getLastArg(options::OPT_fsized_deallocation,
+                               options::OPT_fno_sized_deallocation)) {
+    if (A->getOption().matches(options::OPT_fno_sized_deallocation))
+      CmdArgs.push_back("-fno-sized-deallocation");
+    else
+      CmdArgs.push_back("-fsized-deallocation");
+  }
 
   // -faligned-allocation is on by default in C++17 onwards and otherwise off
   // by default.

diff --git a/clang/lib/Driver/ToolChains/Darwin.cpp b/clang/lib/Driver/ToolChains/Darwin.cpp
@@ -2912,16 +2912,68 @@ static bool sdkSupportsBuiltinModules(const Darwin::DarwinPlatformKind &TargetPl
   }
 }
 
-void Darwin::addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,
-                                   llvm::opt::ArgStringList &CC1Args,
-                                   Action::OffloadKind DeviceOffloadKind) const {
+static inline llvm::VersionTuple
+sizedDeallocMinVersion(llvm::Triple::OSType OS) {
+  switch (OS) {
+  default:
+    break;
+  case llvm::Triple::Darwin:
+  case llvm::Triple::MacOSX: // Earliest supporting version is 10.12.
+    return llvm::VersionTuple(10U, 12U);
+  case llvm::Triple::IOS:
+  case llvm::Triple::TvOS: // Earliest supporting version is 10.0.0.
+    return llvm::VersionTuple(10U);
+  case llvm::Triple::WatchOS: // Earliest supporting version is 3.0.0.
+    return llvm::VersionTuple(3U);
+  }
+
+  llvm_unreachable("Unexpected OS");
+}
+
+bool Darwin::isSizedDeallocationUnavailable() const {
+  llvm::Triple::OSType OS;
+
+  if (isTargetMacCatalyst())
+    return TargetVersion < sizedDeallocMinVersion(llvm::Triple::MacOSX);
+  switch (TargetPlatform) {
+  case MacOS: // Earlier than 10.12.
+    OS = llvm::Triple::MacOSX;
+    break;
+  case IPhoneOS:
+    OS = llvm::Triple::IOS;
+    break;
+  case TvOS: // Earlier than 10.0.
+    OS = llvm::Triple::TvOS;
+    break;
+  case WatchOS: // Earlier than 3.0.
+    OS = llvm::Triple::WatchOS;
+    break;
+  case DriverKit:
+  case XROS:
+    // Always available.
+    return false;
+  }
+
+  return TargetVersion < sizedDeallocMinVersion(OS);
+}
+
+void Darwin::addClangTargetOptions(
+    const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args,
+    Action::OffloadKind DeviceOffloadKind) const {
   // Pass "-faligned-alloc-unavailable" only when the user hasn't manually
   // enabled or disabled aligned allocations.
   if (!DriverArgs.hasArgNoClaim(options::OPT_faligned_allocation,
                                 options::OPT_fno_aligned_allocation) &&
       isAlignedAllocationUnavailable())
     CC1Args.push_back("-faligned-alloc-unavailable");
 
+  // Pass "-fno-sized-deallocation" only when the user hasn't manually enabled
+  // or disabled sized deallocations.
+  if (!DriverArgs.hasArgNoClaim(options::OPT_fsized_deallocation,
+                                options::OPT_fno_sized_deallocation) &&
+      isSizedDeallocationUnavailable())
+    CC1Args.push_back("-fno-sized-deallocation");
+
   addClangCC1ASTargetOptions(DriverArgs, CC1Args);
 
   // Enable compatibility mode for NSItemProviderCompletionHandler in

diff --git a/clang/lib/Driver/ToolChains/Darwin.h b/clang/lib/Driver/ToolChains/Darwin.h
@@ -511,6 +511,10 @@ class LLVM_LIBRARY_VISIBILITY Darwin : public MachO {
   /// targeting.
   bool isAlignedAllocationUnavailable() const;
 
+  /// Return true if c++14 sized deallocation functions are not implemented in
+  /// the c++ standard library of the deployment target we are targeting.
+  bool isSizedDeallocationUnavailable() const;
+
   void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,
                              llvm::opt::ArgStringList &CC1Args,
                              Action::OffloadKind DeviceOffloadKind) const override;

diff --git a/clang/lib/Driver/ToolChains/Linux.cpp b/clang/lib/Driver/ToolChains/Linux.cpp
@@ -842,25 +842,6 @@ void Linux::addProfileRTLibs(const llvm::opt::ArgList &Args,
   ToolChain::addProfileRTLibs(Args, CmdArgs);
 }
 
-llvm::DenormalMode
-Linux::getDefaultDenormalModeForType(const llvm::opt::ArgList &DriverArgs,
-                                     const JobAction &JA,
-                                     const llvm::fltSemantics *FPType) const {
-  switch (getTriple().getArch()) {
-  case llvm::Triple::x86:
-  case llvm::Triple::x86_64: {
-    std::string Unused;
-    // DAZ and FTZ are turned on in crtfastmath.o
-    if (!DriverArgs.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles) &&
-        isFastMathRuntimeAvailable(DriverArgs, Unused))
-      return llvm::DenormalMode::getPreserveSign();
-    return llvm::DenormalMode::getIEEE();
-  }
-  default:
-    return llvm::DenormalMode::getIEEE();
-  }
-}
-
 void Linux::addExtraOpts(llvm::opt::ArgStringList &CmdArgs) const {
   for (const auto &Opt : ExtraOpts)
     CmdArgs.push_back(Opt.c_str());

diff --git a/clang/lib/Driver/ToolChains/Linux.h b/clang/lib/Driver/ToolChains/Linux.h
@@ -59,10 +59,6 @@ class LLVM_LIBRARY_VISIBILITY Linux : public Generic_ELF {
 
   std::vector<std::string> ExtraOpts;
 
-  llvm::DenormalMode getDefaultDenormalModeForType(
-      const llvm::opt::ArgList &DriverArgs, const JobAction &JA,
-      const llvm::fltSemantics *FPType = nullptr) const override;
-
   const char *getDefaultLinker() const override;
 
 protected:

diff --git a/clang/lib/Driver/ToolChains/ZOS.cpp b/clang/lib/Driver/ToolChains/ZOS.cpp
@@ -36,6 +36,12 @@ void ZOS::addClangTargetOptions(const ArgList &DriverArgs,
   if (!DriverArgs.hasArgNoClaim(options::OPT_faligned_allocation,
                                 options::OPT_fno_aligned_allocation))
     CC1Args.push_back("-faligned-alloc-unavailable");
+
+  // Pass "-fno-sized-deallocation" only when the user hasn't manually enabled
+  // or disabled sized deallocations.
+  if (!DriverArgs.hasArgNoClaim(options::OPT_fsized_deallocation,
+                                options::OPT_fno_sized_deallocation))
+    CC1Args.push_back("-fno-sized-deallocation");
 }
 
 void zos::Assembler::ConstructJob(Compilation &C, const JobAction &JA,

diff --git a/clang/lib/Format/Format.cpp b/clang/lib/Format/Format.cpp
@@ -3116,6 +3116,7 @@ static void sortCppIncludes(const FormatStyle &Style,
     return;
   }
 
+  const auto OldCursor = Cursor ? *Cursor : 0;
   std::string result;
   for (unsigned Index : Indices) {
     if (!result.empty()) {
@@ -3139,6 +3140,8 @@ static void sortCppIncludes(const FormatStyle &Style,
   // the entire range of blocks. Otherwise, no replacement is generated.
   if (replaceCRLF(result) == replaceCRLF(std::string(Code.substr(
                                  IncludesBeginOffset, IncludesBlockSize)))) {
+    if (Cursor)
+      *Cursor = OldCursor;
     return;
   }
 

diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -389,8 +389,7 @@ static void InitializeStandardPredefinedMacros(const TargetInfo &TI,
                         Twine((unsigned)LangOpts.getHLSLVersion()));
 
     if (LangOpts.NativeHalfType)
-      Builder.defineMacro("__HLSL_ENABLE_16_BIT",
-                          Twine((unsigned)LangOpts.getHLSLVersion()));
+      Builder.defineMacro("__HLSL_ENABLE_16_BIT", "1");
 
     // Shader target information
     // "enums" for shader stages

diff --git a/clang/lib/Headers/cpuid.h b/clang/lib/Headers/cpuid.h
@@ -10,7 +10,7 @@
 #ifndef __CPUID_H
 #define __CPUID_H
 
-#if !(__x86_64__ || __i386__)
+#if !defined(__x86_64__) && !defined(__i386__)
 #error this header is for x86 only
 #endif
 
@@ -256,7 +256,7 @@
 #define bit_AVX10_256   0x00020000
 #define bit_AVX10_512   0x00040000
 
-#if __i386__
+#ifdef __i386__
 #define __cpuid(__leaf, __eax, __ebx, __ecx, __edx) \
     __asm("cpuid" : "=a"(__eax), "=b" (__ebx), "=c"(__ecx), "=d"(__edx) \
                   : "0"(__leaf))
@@ -285,7 +285,7 @@ static __inline unsigned int __get_cpuid_max (unsigned int __leaf,
                                               unsigned int *__sig)
 {
     unsigned int __eax, __ebx, __ecx, __edx;
-#if __i386__
+#ifdef __i386__
     int __cpuid_supported;
 
     __asm("  pushfl\n"

diff --git a/clang/lib/Parse/ParseExpr.cpp b/clang/lib/Parse/ParseExpr.cpp
@@ -31,6 +31,7 @@
 #include "clang/Sema/ParsedTemplate.h"
 #include "clang/Sema/Scope.h"
 #include "clang/Sema/SemaCUDA.h"
+#include "clang/Sema/SemaOpenACC.h"
 #include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/SemaSYCL.h"
 #include "clang/Sema/TypoCorrection.h"
@@ -2070,15 +2071,22 @@ Parser::ParsePostfixExpressionSuffix(ExprResult LHS) {
       if (!LHS.isInvalid() && !HasError && !Length.isInvalid() &&
           !Stride.isInvalid() && Tok.is(tok::r_square)) {
         if (ColonLocFirst.isValid() || ColonLocSecond.isValid()) {
-          // FIXME: OpenACC hasn't implemented Sema/Array section handling at a
-          // semantic level yet. For now, just reuse the OpenMP implementation
-          // as it gets the parsing/type management mostly right, and we can
-          // replace this call to ActOnOpenACCArraySectionExpr in the future.
-          // Eventually we'll genericize the OPenMPArraySectionExpr type as
-          // well.
-          LHS = Actions.OpenMP().ActOnOMPArraySectionExpr(
-              LHS.get(), Loc, ArgExprs.empty() ? nullptr : ArgExprs[0],
-              ColonLocFirst, ColonLocSecond, Length.get(), Stride.get(), RLoc);
+          // Like above, AllowOpenACCArraySections is 'more specific' and only
+          // enabled when actively parsing a 'var' in a 'var-list' during
+          // clause/'cache' construct parsing, so it is more specific. So we
+          // should do it first, so that the correct node gets created.
+          if (AllowOpenACCArraySections) {
+            assert(!Stride.isUsable() && !ColonLocSecond.isValid() &&
+                   "Stride/second colon not allowed for OpenACC");
+            LHS = Actions.OpenACC().ActOnArraySectionExpr(
+                LHS.get(), Loc, ArgExprs.empty() ? nullptr : ArgExprs[0],
+                ColonLocFirst, Length.get(), RLoc);
+          } else {
+            LHS = Actions.OpenMP().ActOnOMPArraySectionExpr(
+                LHS.get(), Loc, ArgExprs.empty() ? nullptr : ArgExprs[0],
+                ColonLocFirst, ColonLocSecond, Length.get(), Stride.get(),
+                RLoc);
+          }
         } else {
           LHS = Actions.ActOnArraySubscriptExpr(getCurScope(), LHS.get(), Loc,
                                                 ArgExprs, RLoc);

diff --git a/clang/lib/Parse/ParseOpenACC.cpp b/clang/lib/Parse/ParseOpenACC.cpp
@@ -327,7 +327,7 @@ OpenACCReductionOperator ParseReductionOperator(Parser &P) {
       return OpenACCReductionOperator::Max;
     if (ReductionKindTok.getIdentifierInfo()->isStr("min"))
       return OpenACCReductionOperator::Min;
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   default:
     P.Diag(ReductionKindTok, diag::err_acc_invalid_reduction_operator);
     return OpenACCReductionOperator::Invalid;
@@ -945,7 +945,7 @@ Parser::OpenACCClauseParseResult Parser::ParseOpenACCClauseParams(
       // the 'update' clause, so we have to handle it here.  U se an assert to
       // make sure we get the right differentiator.
       assert(DirKind == OpenACCDirectiveKind::Update);
-      LLVM_FALLTHROUGH;
+      [[fallthrough]];
     case OpenACCClauseKind::Attach:
     case OpenACCClauseKind::Copy:
     case OpenACCClauseKind::Delete:

diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
@@ -18724,8 +18724,10 @@ void Sema::CheckArrayAccess(const Expr *expr) {
         expr = cast<MemberExpr>(expr)->getBase();
         break;
       }
-      case Stmt::OMPArraySectionExprClass: {
-        const OMPArraySectionExpr *ASE = cast<OMPArraySectionExpr>(expr);
+      case Stmt::ArraySectionExprClass: {
+        const ArraySectionExpr *ASE = cast<ArraySectionExpr>(expr);
+        // FIXME: We should probably be checking all of the elements to the
+        // 'length' here as well.
         if (ASE->getLowerBound())
           CheckArrayAccess(ASE->getBase(), ASE->getLowerBound(),
                            /*ASE=*/nullptr, AllowOnePastEnd > 0);

diff --git a/clang/lib/Sema/SemaExceptionSpec.cpp b/clang/lib/Sema/SemaExceptionSpec.cpp
@@ -1314,7 +1314,7 @@ CanThrowResult Sema::canThrow(const Stmt *S) {
     // Some might be dependent for other reasons.
   case Expr::ArraySubscriptExprClass:
   case Expr::MatrixSubscriptExprClass:
-  case Expr::OMPArraySectionExprClass:
+  case Expr::ArraySectionExprClass:
   case Expr::OMPArrayShapingExprClass:
   case Expr::OMPIteratorExprClass:
   case Expr::BinaryOperatorClass:

diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
@@ -5069,11 +5069,18 @@ ExprResult Sema::ActOnArraySubscriptExpr(Scope *S, Expr *base,
                                          SourceLocation rbLoc) {
 
   if (base && !base->getType().isNull() &&
-      base->hasPlaceholderType(BuiltinType::OMPArraySection))
-    return OpenMP().ActOnOMPArraySectionExpr(base, lbLoc, ArgExprs.front(),
-                                             SourceLocation(), SourceLocation(),
-                                             /*Length*/ nullptr,
-                                             /*Stride=*/nullptr, rbLoc);
+      base->hasPlaceholderType(BuiltinType::ArraySection)) {
+    auto *AS = cast<ArraySectionExpr>(base);
+    if (AS->isOMPArraySection())
+      return OpenMP().ActOnOMPArraySectionExpr(
+          base, lbLoc, ArgExprs.front(), SourceLocation(), SourceLocation(),
+          /*Length*/ nullptr,
+          /*Stride=*/nullptr, rbLoc);
+
+    return OpenACC().ActOnArraySectionExpr(base, lbLoc, ArgExprs.front(),
+                                           SourceLocation(), /*Length*/ nullptr,
+                                           rbLoc);
+  }
 
   // Since this might be a postfix expression, get rid of ParenListExprs.
   if (isa<ParenListExpr>(base)) {
@@ -6361,7 +6368,7 @@ static bool isPlaceholderToRemoveAsArg(QualType type) {
   case BuiltinType::BoundMember:
   case BuiltinType::BuiltinFn:
   case BuiltinType::IncompleteMatrixIdx:
-  case BuiltinType::OMPArraySection:
+  case BuiltinType::ArraySection:
   case BuiltinType::OMPArrayShaping:
   case BuiltinType::OMPIterator:
     return true;
@@ -21343,8 +21350,9 @@ ExprResult Sema::CheckPlaceholderExpr(Expr *E) {
     return ExprError();
 
   // Expressions of unknown type.
-  case BuiltinType::OMPArraySection:
-    Diag(E->getBeginLoc(), diag::err_omp_array_section_use);
+  case BuiltinType::ArraySection:
+    Diag(E->getBeginLoc(), diag::err_array_section_use)
+        << cast<ArraySectionExpr>(E)->isOMPArraySection();
     return ExprError();
 
   // Expressions of unknown type.

diff --git a/clang/lib/Sema/SemaInit.cpp b/clang/lib/Sema/SemaInit.cpp
@@ -7753,9 +7753,9 @@ static void visitLocalsRetainedByReferenceBinding(IndirectLocalPath &Path,
     break;
   }
 
-  case Stmt::OMPArraySectionExprClass: {
+  case Stmt::ArraySectionExprClass: {
     visitLocalsRetainedByInitializer(Path,
-                                     cast<OMPArraySectionExpr>(Init)->getBase(),
+                                     cast<ArraySectionExpr>(Init)->getBase(),
                                      Visit, true, EnableLifetimeWarnings);
     break;
   }

diff --git a/clang/lib/Sema/SemaOpenACC.cpp b/clang/lib/Sema/SemaOpenACC.cpp
@@ -423,6 +423,21 @@ ExprResult SemaOpenACC::ActOnIntExpr(OpenACCDirectiveKind DK,
   return IntExpr;
 }
 
+ExprResult SemaOpenACC::ActOnArraySectionExpr(Expr *Base, SourceLocation LBLoc,
+                                              Expr *LowerBound,
+                                              SourceLocation ColonLoc,
+                                              Expr *Length,
+                                              SourceLocation RBLoc) {
+  ASTContext &Context = getASTContext();
+
+  // TODO OpenACC: We likely have to reproduce a lot of the same logic from the
+  // OMP version of this, but at the moment we don't have a good way to test it,
+  // so for now we'll just create the node.
+  return new (Context)
+      ArraySectionExpr(Base, LowerBound, Length, Context.ArraySectionTy,
+                       VK_LValue, OK_Ordinary, ColonLoc, RBLoc);
+}
+
 bool SemaOpenACC::ActOnStartStmtDirective(OpenACCDirectiveKind K,
                                           SourceLocation StartLoc) {
   return diagnoseConstructAppertainment(*this, K, StartLoc, /*IsStmt=*/true);

diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
@@ -2230,7 +2230,7 @@ bool SemaOpenMP::isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
               dyn_cast<UnaryOperator>(Last->getAssociatedExpression());
           if ((UO && UO->getOpcode() == UO_Deref) ||
               isa<ArraySubscriptExpr>(Last->getAssociatedExpression()) ||
-              isa<OMPArraySectionExpr>(Last->getAssociatedExpression()) ||
+              isa<ArraySectionExpr>(Last->getAssociatedExpression()) ||
               isa<MemberExpr>(EI->getAssociatedExpression()) ||
               isa<OMPArrayShapingExpr>(Last->getAssociatedExpression())) {
             IsVariableAssociatedWithSection = true;
@@ -3884,7 +3884,7 @@ class DSAAttrChecker final : public StmtVisitor<DSAAttrChecker, void> {
                                     MappableComponent &MC) {
                                return MC.getAssociatedDeclaration() ==
                                           nullptr &&
-                                      (isa<OMPArraySectionExpr>(
+                                      (isa<ArraySectionExpr>(
                                            MC.getAssociatedExpression()) ||
                                        isa<OMPArrayShapingExpr>(
                                            MC.getAssociatedExpression()) ||
@@ -4062,7 +4062,7 @@ class DSAAttrChecker final : public StmtVisitor<DSAAttrChecker, void> {
                   // Do both expressions have the same kind?
                   if (CCI->getAssociatedExpression()->getStmtClass() !=
                       SC.getAssociatedExpression()->getStmtClass())
-                    if (!((isa<OMPArraySectionExpr>(
+                    if (!((isa<ArraySectionExpr>(
                                SC.getAssociatedExpression()) ||
                            isa<OMPArrayShapingExpr>(
                                SC.getAssociatedExpression())) &&
@@ -5428,9 +5428,9 @@ static std::pair<ValueDecl *, bool> getPrivateItem(Sema &S, Expr *&RefExpr,
         Base = TempASE->getBase()->IgnoreParenImpCasts();
       RefExpr = Base;
       IsArrayExpr = ArraySubscript;
-    } else if (auto *OASE = dyn_cast_or_null<OMPArraySectionExpr>(RefExpr)) {
+    } else if (auto *OASE = dyn_cast_or_null<ArraySectionExpr>(RefExpr)) {
       Expr *Base = OASE->getBase()->IgnoreParenImpCasts();
-      while (auto *TempOASE = dyn_cast<OMPArraySectionExpr>(Base))
+      while (auto *TempOASE = dyn_cast<ArraySectionExpr>(Base))
         Base = TempOASE->getBase()->IgnoreParenImpCasts();
       while (auto *TempASE = dyn_cast<ArraySubscriptExpr>(Base))
         Base = TempASE->getBase()->IgnoreParenImpCasts();
@@ -6060,10 +6060,10 @@ processImplicitMapsWithDefaultMappers(Sema &S, DSAStackTy *Stack,
       // Array section - need to check for the mapping of the array section
       // element.
       QualType CanonType = E->getType().getCanonicalType();
-      if (CanonType->isSpecificBuiltinType(BuiltinType::OMPArraySection)) {
-        const auto *OASE = cast<OMPArraySectionExpr>(E->IgnoreParenImpCasts());
+      if (CanonType->isSpecificBuiltinType(BuiltinType::ArraySection)) {
+        const auto *OASE = cast<ArraySectionExpr>(E->IgnoreParenImpCasts());
         QualType BaseType =
-            OMPArraySectionExpr::getBaseOriginalType(OASE->getBase());
+            ArraySectionExpr::getBaseOriginalType(OASE->getBase());
         QualType ElemType;
         if (const auto *ATy = BaseType->getAsArrayTypeUnsafe())
           ElemType = ATy->getElementType();
@@ -19513,7 +19513,7 @@ struct ReductionData {
 } // namespace
 
 static bool checkOMPArraySectionConstantForReduction(
-    ASTContext &Context, const OMPArraySectionExpr *OASE, bool &SingleElement,
+    ASTContext &Context, const ArraySectionExpr *OASE, bool &SingleElement,
     SmallVectorImpl<llvm::APSInt> &ArraySizes) {
   const Expr *Length = OASE->getLength();
   if (Length == nullptr) {
@@ -19540,7 +19540,7 @@ static bool checkOMPArraySectionConstantForReduction(
 
   // We require length = 1 for all array sections except the right-most to
   // guarantee that the memory region is contiguous and has no holes in it.
-  while (const auto *TempOASE = dyn_cast<OMPArraySectionExpr>(Base)) {
+  while (const auto *TempOASE = dyn_cast<ArraySectionExpr>(Base)) {
     Length = TempOASE->getLength();
     if (Length == nullptr) {
       // For array sections of the form [1:] or [:], we would need to analyze
@@ -19745,12 +19745,12 @@ static bool actOnOMPReductionKindClause(
     Expr *TaskgroupDescriptor = nullptr;
     QualType Type;
     auto *ASE = dyn_cast<ArraySubscriptExpr>(RefExpr->IgnoreParens());
-    auto *OASE = dyn_cast<OMPArraySectionExpr>(RefExpr->IgnoreParens());
+    auto *OASE = dyn_cast<ArraySectionExpr>(RefExpr->IgnoreParens());
     if (ASE) {
       Type = ASE->getType().getNonReferenceType();
     } else if (OASE) {
       QualType BaseType =
-          OMPArraySectionExpr::getBaseOriginalType(OASE->getBase());
+          ArraySectionExpr::getBaseOriginalType(OASE->getBase());
       if (const auto *ATy = BaseType->getAsArrayTypeUnsafe())
         Type = ATy->getElementType();
       else
@@ -21284,10 +21284,10 @@ OMPClause *SemaOpenMP::ActOnOpenMPDependClause(
           // List items used in depend clauses cannot be zero-length array
           // sections.
           QualType ExprTy = RefExpr->getType().getNonReferenceType();
-          const auto *OASE = dyn_cast<OMPArraySectionExpr>(SimpleExpr);
+          const auto *OASE = dyn_cast<ArraySectionExpr>(SimpleExpr);
           if (OASE) {
             QualType BaseType =
-                OMPArraySectionExpr::getBaseOriginalType(OASE->getBase());
+                ArraySectionExpr::getBaseOriginalType(OASE->getBase());
             if (BaseType.isNull())
               return nullptr;
             if (const auto *ATy = BaseType->getAsArrayTypeUnsafe())
@@ -21346,7 +21346,7 @@ OMPClause *SemaOpenMP::ActOnOpenMPDependClause(
             Res = SemaRef.CreateBuiltinUnaryOp(ELoc, UO_AddrOf,
                                                RefExpr->IgnoreParenImpCasts());
           }
-          if (!Res.isUsable() && !isa<OMPArraySectionExpr>(SimpleExpr) &&
+          if (!Res.isUsable() && !isa<ArraySectionExpr>(SimpleExpr) &&
               !isa<OMPArrayShapingExpr>(SimpleExpr)) {
             Diag(ELoc, diag::err_omp_expected_addressable_lvalue_or_array_item)
                 << (getLangOpts().OpenMP >= 50 ? 1 : 0)
@@ -21447,7 +21447,7 @@ static bool checkTypeMappable(SourceLocation SL, SourceRange SR, Sema &SemaRef,
 static bool checkArrayExpressionDoesNotReferToWholeSize(Sema &SemaRef,
                                                         const Expr *E,
                                                         QualType BaseQTy) {
-  const auto *OASE = dyn_cast<OMPArraySectionExpr>(E);
+  const auto *OASE = dyn_cast<ArraySectionExpr>(E);
 
   // If this is an array subscript, it refers to the whole size if the size of
   // the dimension is constant and equals 1. Also, an array section assumes the
@@ -21505,7 +21505,7 @@ static bool checkArrayExpressionDoesNotReferToWholeSize(Sema &SemaRef,
 static bool checkArrayExpressionDoesNotReferToUnitySize(Sema &SemaRef,
                                                         const Expr *E,
                                                         QualType BaseQTy) {
-  const auto *OASE = dyn_cast<OMPArraySectionExpr>(E);
+  const auto *OASE = dyn_cast<ArraySectionExpr>(E);
 
   // An array subscript always refer to a single element. Also, an array section
   // assumes the format of an array subscript if no colon is used.
@@ -21720,14 +21720,14 @@ class MapBaseChecker final : public StmtVisitor<MapBaseChecker, bool> {
     return RelevantExpr || Visit(E);
   }
 
-  bool VisitOMPArraySectionExpr(OMPArraySectionExpr *OASE) {
+  bool VisitArraySectionExpr(ArraySectionExpr *OASE) {
     // After OMP 5.0  Array section in reduction clause will be implicitly
     // mapped
     assert(!(SemaRef.getLangOpts().OpenMP < 50 && NoDiagnose) &&
            "Array sections cannot be implicitly mapped.");
     Expr *E = OASE->getBase()->IgnoreParenImpCasts();
     QualType CurType =
-        OMPArraySectionExpr::getBaseOriginalType(E).getCanonicalType();
+        ArraySectionExpr::getBaseOriginalType(E).getCanonicalType();
 
     // OpenMP 4.5 [2.15.5.1, map Clause, Restrictions, C++, p.1]
     //  If the type of a list item is a reference to a type T then the type
@@ -21900,7 +21900,7 @@ static const Expr *checkMapClauseExpressionBase(
       auto CE = CurComponents.rend();
       for (; CI != CE; ++CI) {
         const auto *OASE =
-            dyn_cast<OMPArraySectionExpr>(CI->getAssociatedExpression());
+            dyn_cast<ArraySectionExpr>(CI->getAssociatedExpression());
         if (!OASE)
           continue;
         if (OASE && OASE->getLength())
@@ -21970,10 +21970,10 @@ static bool checkMapConflicts(
           //  variable in map clauses of the same construct.
           if (CurrentRegionOnly &&
               (isa<ArraySubscriptExpr>(CI->getAssociatedExpression()) ||
-               isa<OMPArraySectionExpr>(CI->getAssociatedExpression()) ||
+               isa<ArraySectionExpr>(CI->getAssociatedExpression()) ||
                isa<OMPArrayShapingExpr>(CI->getAssociatedExpression())) &&
               (isa<ArraySubscriptExpr>(SI->getAssociatedExpression()) ||
-               isa<OMPArraySectionExpr>(SI->getAssociatedExpression()) ||
+               isa<ArraySectionExpr>(SI->getAssociatedExpression()) ||
                isa<OMPArrayShapingExpr>(SI->getAssociatedExpression()))) {
             SemaRef.Diag(CI->getAssociatedExpression()->getExprLoc(),
                          diag::err_omp_multiple_array_items_in_map_clause)
@@ -22001,11 +22001,10 @@ static bool checkMapConflicts(
           if (const auto *ASE =
                   dyn_cast<ArraySubscriptExpr>(SI->getAssociatedExpression())) {
             Type = ASE->getBase()->IgnoreParenImpCasts()->getType();
-          } else if (const auto *OASE = dyn_cast<OMPArraySectionExpr>(
+          } else if (const auto *OASE = dyn_cast<ArraySectionExpr>(
                          SI->getAssociatedExpression())) {
             const Expr *E = OASE->getBase()->IgnoreParenImpCasts();
-            Type =
-                OMPArraySectionExpr::getBaseOriginalType(E).getCanonicalType();
+            Type = ArraySectionExpr::getBaseOriginalType(E).getCanonicalType();
           } else if (const auto *OASE = dyn_cast<OMPArrayShapingExpr>(
                          SI->getAssociatedExpression())) {
             Type = OASE->getBase()->getType()->getPointeeType();
@@ -22480,13 +22479,13 @@ static void checkMappableExpressionList(
     (void)I;
     QualType Type;
     auto *ASE = dyn_cast<ArraySubscriptExpr>(VE->IgnoreParens());
-    auto *OASE = dyn_cast<OMPArraySectionExpr>(VE->IgnoreParens());
+    auto *OASE = dyn_cast<ArraySectionExpr>(VE->IgnoreParens());
     auto *OAShE = dyn_cast<OMPArrayShapingExpr>(VE->IgnoreParens());
     if (ASE) {
       Type = ASE->getType().getNonReferenceType();
     } else if (OASE) {
       QualType BaseType =
-          OMPArraySectionExpr::getBaseOriginalType(OASE->getBase());
+          ArraySectionExpr::getBaseOriginalType(OASE->getBase());
       if (const auto *ATy = BaseType->getAsArrayTypeUnsafe())
         Type = ATy->getElementType();
       else
@@ -23955,7 +23954,7 @@ SemaOpenMP::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
     MVLI.VarBaseDeclarations.push_back(D);
     MVLI.VarComponents.emplace_back();
     Expr *Component = SimpleRefExpr;
-    if (VD && (isa<OMPArraySectionExpr>(RefExpr->IgnoreParenImpCasts()) ||
+    if (VD && (isa<ArraySectionExpr>(RefExpr->IgnoreParenImpCasts()) ||
                isa<ArraySubscriptExpr>(RefExpr->IgnoreParenImpCasts())))
       Component =
           SemaRef.DefaultFunctionArrayLvalueConversion(SimpleRefExpr).get();
@@ -24105,7 +24104,7 @@ SemaOpenMP::ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
     // against other clauses later on.
     Expr *Component = SimpleRefExpr;
     auto *VD = dyn_cast<VarDecl>(D);
-    if (VD && (isa<OMPArraySectionExpr>(RefExpr->IgnoreParenImpCasts()) ||
+    if (VD && (isa<ArraySectionExpr>(RefExpr->IgnoreParenImpCasts()) ||
                isa<ArraySubscriptExpr>(RefExpr->IgnoreParenImpCasts())))
       Component =
           SemaRef.DefaultFunctionArrayLvalueConversion(SimpleRefExpr).get();
@@ -24519,7 +24518,7 @@ OMPClause *SemaOpenMP::ActOnOpenMPAffinityClause(
       Sema::TentativeAnalysisScope Trap(SemaRef);
       Res = SemaRef.CreateBuiltinUnaryOp(ELoc, UO_AddrOf, SimpleExpr);
     }
-    if (!Res.isUsable() && !isa<OMPArraySectionExpr>(SimpleExpr) &&
+    if (!Res.isUsable() && !isa<ArraySectionExpr>(SimpleExpr) &&
         !isa<OMPArrayShapingExpr>(SimpleExpr)) {
       Diag(ELoc, diag::err_omp_expected_addressable_lvalue_or_array_item)
           << 1 << 0 << RefExpr->getSourceRange();
@@ -24632,7 +24631,7 @@ ExprResult SemaOpenMP::ActOnOMPArraySectionExpr(
     Expr *Stride, SourceLocation RBLoc) {
   ASTContext &Context = getASTContext();
   if (Base->hasPlaceholderType() &&
-      !Base->hasPlaceholderType(BuiltinType::OMPArraySection)) {
+      !Base->hasPlaceholderType(BuiltinType::ArraySection)) {
     ExprResult Result = SemaRef.CheckPlaceholderExpr(Base);
     if (Result.isInvalid())
       return ExprError();
@@ -24672,13 +24671,13 @@ ExprResult SemaOpenMP::ActOnOMPArraySectionExpr(
        (LowerBound->isTypeDependent() || LowerBound->isValueDependent())) ||
       (Length && (Length->isTypeDependent() || Length->isValueDependent())) ||
       (Stride && (Stride->isTypeDependent() || Stride->isValueDependent()))) {
-    return new (Context) OMPArraySectionExpr(
+    return new (Context) ArraySectionExpr(
         Base, LowerBound, Length, Stride, Context.DependentTy, VK_LValue,
         OK_Ordinary, ColonLocFirst, ColonLocSecond, RBLoc);
   }
 
   // Perform default conversions.
-  QualType OriginalTy = OMPArraySectionExpr::getBaseOriginalType(Base);
+  QualType OriginalTy = ArraySectionExpr::getBaseOriginalType(Base);
   QualType ResultTy;
   if (OriginalTy->isAnyPointerType()) {
     ResultTy = OriginalTy->getPointeeType();
@@ -24801,14 +24800,14 @@ ExprResult SemaOpenMP::ActOnOMPArraySectionExpr(
     }
   }
 
-  if (!Base->hasPlaceholderType(BuiltinType::OMPArraySection)) {
+  if (!Base->hasPlaceholderType(BuiltinType::ArraySection)) {
     ExprResult Result = SemaRef.DefaultFunctionArrayLvalueConversion(Base);
     if (Result.isInvalid())
       return ExprError();
     Base = Result.get();
   }
-  return new (Context) OMPArraySectionExpr(
-      Base, LowerBound, Length, Stride, Context.OMPArraySectionTy, VK_LValue,
+  return new (Context) ArraySectionExpr(
+      Base, LowerBound, Length, Stride, Context.ArraySectionTy, VK_LValue,
       OK_Ordinary, ColonLocFirst, ColonLocSecond, RBLoc);
 }
 

diff --git a/clang/lib/Sema/TreeTransform.h b/clang/lib/Sema/TreeTransform.h
@@ -2784,15 +2784,23 @@ class TreeTransform {
   ///
   /// By default, performs semantic analysis to build the new expression.
   /// Subclasses may override this routine to provide different behavior.
-  ExprResult RebuildOMPArraySectionExpr(Expr *Base, SourceLocation LBracketLoc,
-                                        Expr *LowerBound,
-                                        SourceLocation ColonLocFirst,
-                                        SourceLocation ColonLocSecond,
-                                        Expr *Length, Expr *Stride,
-                                        SourceLocation RBracketLoc) {
-    return getSema().OpenMP().ActOnOMPArraySectionExpr(
-        Base, LBracketLoc, LowerBound, ColonLocFirst, ColonLocSecond, Length,
-        Stride, RBracketLoc);
+  ExprResult RebuildArraySectionExpr(bool IsOMPArraySection, Expr *Base,
+                                     SourceLocation LBracketLoc,
+                                     Expr *LowerBound,
+                                     SourceLocation ColonLocFirst,
+                                     SourceLocation ColonLocSecond,
+                                     Expr *Length, Expr *Stride,
+                                     SourceLocation RBracketLoc) {
+    if (IsOMPArraySection)
+      return getSema().OpenMP().ActOnOMPArraySectionExpr(
+          Base, LBracketLoc, LowerBound, ColonLocFirst, ColonLocSecond, Length,
+          Stride, RBracketLoc);
+
+    assert(Stride == nullptr && !ColonLocSecond.isValid() &&
+           "Stride/second colon not allowed for OpenACC");
+
+    return getSema().OpenACC().ActOnArraySectionExpr(
+        Base, LBracketLoc, LowerBound, ColonLocFirst, Length, RBracketLoc);
   }
 
   /// Build a new array shaping expression.
@@ -11742,7 +11750,7 @@ TreeTransform<Derived>::TransformMatrixSubscriptExpr(MatrixSubscriptExpr *E) {
 
 template <typename Derived>
 ExprResult
-TreeTransform<Derived>::TransformOMPArraySectionExpr(OMPArraySectionExpr *E) {
+TreeTransform<Derived>::TransformArraySectionExpr(ArraySectionExpr *E) {
   ExprResult Base = getDerived().TransformExpr(E->getBase());
   if (Base.isInvalid())
     return ExprError();
@@ -11762,20 +11770,25 @@ TreeTransform<Derived>::TransformOMPArraySectionExpr(OMPArraySectionExpr *E) {
   }
 
   ExprResult Stride;
-  if (Expr *Str = E->getStride()) {
-    Stride = getDerived().TransformExpr(Str);
-    if (Stride.isInvalid())
-      return ExprError();
+  if (E->isOMPArraySection()) {
+    if (Expr *Str = E->getStride()) {
+      Stride = getDerived().TransformExpr(Str);
+      if (Stride.isInvalid())
+        return ExprError();
+    }
   }
 
   if (!getDerived().AlwaysRebuild() && Base.get() == E->getBase() &&
-      LowerBound.get() == E->getLowerBound() && Length.get() == E->getLength())
+      LowerBound.get() == E->getLowerBound() &&
+      Length.get() == E->getLength() &&
+      (E->isOpenACCArraySection() || Stride.get() == E->getStride()))
     return E;
 
-  return getDerived().RebuildOMPArraySectionExpr(
-      Base.get(), E->getBase()->getEndLoc(), LowerBound.get(),
-      E->getColonLocFirst(), E->getColonLocSecond(), Length.get(), Stride.get(),
-      E->getRBracketLoc());
+  return getDerived().RebuildArraySectionExpr(
+      E->isOMPArraySection(), Base.get(), E->getBase()->getEndLoc(),
+      LowerBound.get(), E->getColonLocFirst(),
+      E->isOMPArraySection() ? E->getColonLocSecond() : SourceLocation{},
+      Length.get(), Stride.get(), E->getRBracketLoc());
 }
 
 template <typename Derived>

diff --git a/clang/lib/Serialization/ASTCommon.cpp b/clang/lib/Serialization/ASTCommon.cpp
@@ -261,8 +261,8 @@ serialization::TypeIdxFromBuiltin(const BuiltinType *BT) {
   case BuiltinType::IncompleteMatrixIdx:
     ID = PREDEF_TYPE_INCOMPLETE_MATRIX_IDX;
     break;
-  case BuiltinType::OMPArraySection:
-    ID = PREDEF_TYPE_OMP_ARRAY_SECTION;
+  case BuiltinType::ArraySection:
+    ID = PREDEF_TYPE_ARRAY_SECTION;
     break;
   case BuiltinType::OMPArrayShaping:
     ID = PREDEF_TYPE_OMP_ARRAY_SHAPING;

diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
@@ -7385,11 +7385,11 @@ QualType ASTReader::GetType(TypeID ID) {
     case PREDEF_TYPE_INCOMPLETE_MATRIX_IDX:
       T = Context.IncompleteMatrixIdxTy;
       break;
-    case PREDEF_TYPE_OMP_ARRAY_SECTION:
-      T = Context.OMPArraySectionTy;
+    case PREDEF_TYPE_ARRAY_SECTION:
+      T = Context.ArraySectionTy;
       break;
     case PREDEF_TYPE_OMP_ARRAY_SHAPING:
-      T = Context.OMPArraySectionTy;
+      T = Context.OMPArrayShapingTy;
       break;
     case PREDEF_TYPE_OMP_ITERATOR:
       T = Context.OMPIteratorTy;

diff --git a/clang/lib/Serialization/ASTReaderStmt.cpp b/clang/lib/Serialization/ASTReaderStmt.cpp
@@ -956,14 +956,22 @@ void ASTStmtReader::VisitMatrixSubscriptExpr(MatrixSubscriptExpr *E) {
   E->setRBracketLoc(readSourceLocation());
 }
 
-void ASTStmtReader::VisitOMPArraySectionExpr(OMPArraySectionExpr *E) {
+void ASTStmtReader::VisitArraySectionExpr(ArraySectionExpr *E) {
   VisitExpr(E);
+  E->ASType = Record.readEnum<ArraySectionExpr::ArraySectionType>();
+
   E->setBase(Record.readSubExpr());
   E->setLowerBound(Record.readSubExpr());
   E->setLength(Record.readSubExpr());
-  E->setStride(Record.readSubExpr());
+
+  if (E->isOMPArraySection())
+    E->setStride(Record.readSubExpr());
+
   E->setColonLocFirst(readSourceLocation());
-  E->setColonLocSecond(readSourceLocation());
+
+  if (E->isOMPArraySection())
+    E->setColonLocSecond(readSourceLocation());
+
   E->setRBracketLoc(readSourceLocation());
 }
 
@@ -3090,8 +3098,8 @@ Stmt *ASTReader::ReadStmtFromStream(ModuleFile &F) {
       S = new (Context) MatrixSubscriptExpr(Empty);
       break;
 
-    case EXPR_OMP_ARRAY_SECTION:
-      S = new (Context) OMPArraySectionExpr(Empty);
+    case EXPR_ARRAY_SECTION:
+      S = new (Context) ArraySectionExpr(Empty);
       break;
 
     case EXPR_OMP_ARRAY_SHAPING:

diff --git a/clang/lib/Serialization/ASTWriterStmt.cpp b/clang/lib/Serialization/ASTWriterStmt.cpp
@@ -880,16 +880,21 @@ void ASTStmtWriter::VisitMatrixSubscriptExpr(MatrixSubscriptExpr *E) {
   Code = serialization::EXPR_ARRAY_SUBSCRIPT;
 }
 
-void ASTStmtWriter::VisitOMPArraySectionExpr(OMPArraySectionExpr *E) {
+void ASTStmtWriter::VisitArraySectionExpr(ArraySectionExpr *E) {
   VisitExpr(E);
+  Record.writeEnum(E->ASType);
   Record.AddStmt(E->getBase());
   Record.AddStmt(E->getLowerBound());
   Record.AddStmt(E->getLength());
-  Record.AddStmt(E->getStride());
+  if (E->isOMPArraySection())
+    Record.AddStmt(E->getStride());
   Record.AddSourceLocation(E->getColonLocFirst());
-  Record.AddSourceLocation(E->getColonLocSecond());
+
+  if (E->isOMPArraySection())
+    Record.AddSourceLocation(E->getColonLocSecond());
+
   Record.AddSourceLocation(E->getRBracketLoc());
-  Code = serialization::EXPR_OMP_ARRAY_SECTION;
+  Code = serialization::EXPR_ARRAY_SECTION;
 }
 
 void ASTStmtWriter::VisitOMPArrayShapingExpr(OMPArrayShapingExpr *E) {

diff --git a/clang/lib/StaticAnalyzer/Checkers/DereferenceChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/DereferenceChecker.cpp
@@ -188,9 +188,9 @@ void DereferenceChecker::reportBug(DerefKind K, ProgramStateRef State,
     os << DerefStr1;
     break;
   }
-  case Stmt::OMPArraySectionExprClass: {
+  case Stmt::ArraySectionExprClass: {
     os << "Array access";
-    const OMPArraySectionExpr *AE = cast<OMPArraySectionExpr>(S);
+    const ArraySectionExpr *AE = cast<ArraySectionExpr>(S);
     AddDerefSource(os, Ranges, AE->getBase()->IgnoreParenCasts(),
                    State.get(), N->getLocationContext());
     os << DerefStr1;

diff --git a/clang/lib/StaticAnalyzer/Checkers/IdenticalExprChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/IdenticalExprChecker.cpp
@@ -350,7 +350,7 @@ static bool isIdenticalStmt(const ASTContext &Ctx, const Stmt *Stmt1,
     return false;
   case Stmt::CallExprClass:
   case Stmt::ArraySubscriptExprClass:
-  case Stmt::OMPArraySectionExprClass:
+  case Stmt::ArraySectionExprClass:
   case Stmt::OMPArrayShapingExprClass:
   case Stmt::OMPIteratorExprClass:
   case Stmt::ImplicitCastExprClass:

diff --git a/clang/lib/StaticAnalyzer/Core/ExprEngine.cpp b/clang/lib/StaticAnalyzer/Core/ExprEngine.cpp
@@ -1948,7 +1948,7 @@ void ExprEngine::Visit(const Stmt *S, ExplodedNode *Pred,
     case Stmt::CXXPseudoDestructorExprClass:
     case Stmt::SubstNonTypeTemplateParmExprClass:
     case Stmt::CXXNullPtrLiteralExprClass:
-    case Stmt::OMPArraySectionExprClass:
+    case Stmt::ArraySectionExprClass:
     case Stmt::OMPArrayShapingExprClass:
     case Stmt::OMPIteratorExprClass:
     case Stmt::SYCLUniqueStableNameExprClass:

diff --git a/clang/test/AST/Interp/cxx23.cpp b/clang/test/AST/Interp/cxx23.cpp
@@ -141,3 +141,19 @@ struct check_ice {
     };
 };
 static_assert(check_ice<42>::x == 42);
+
+
+namespace VirtualBases {
+  namespace One {
+    struct U { int n; };
+    struct V : U { int n; };
+    struct A : virtual V { int n; };
+    struct Aa { int n; };
+    struct B : virtual A, Aa {};
+    struct C : virtual A, Aa {};
+    struct D : B, C {};
+
+    /// Calls the constructor of D.
+    D d;
+  }
+}
diff --git a/clang/test/AST/Interp/records.cpp b/clang/test/AST/Interp/records.cpp
@@ -1330,3 +1330,82 @@ namespace UnnamedBitFields {
   static_assert(a.f == 1.0, "");
   static_assert(a.c == 'a', "");
 }
+
+/// FIXME: This still doesn't work in the new interpreter because
+/// we lack type information for dummy pointers.
+namespace VirtualBases {
+  /// This used to crash.
+  namespace One {
+    class A {
+    protected:
+      int x;
+    };
+    class B : public virtual A {
+    public:
+      int getX() { return x; } // ref-note {{declared here}}
+    };
+
+    class DV : virtual public B{};
+
+    void foo() {
+      DV b;
+      int a[b.getX()]; // both-warning {{variable length arrays}} \
+                       // ref-note {{non-constexpr function 'getX' cannot be used}}
+    }
+  }
+
+  namespace Two {
+    struct U { int n; };
+    struct A : virtual U { int n; };
+    struct B : A {};
+    B a;
+    static_assert((U*)(A*)(&a) == (U*)(&a), "");
+
+    struct C : virtual A {};
+    struct D : B, C {};
+    D d;
+    constexpr B *p = &d;
+    constexpr C *q = &d;
+    static_assert((A*)p == (A*)q, ""); // both-error {{failed}}
+  }
+
+  namespace Three {
+    struct U { int n; };
+    struct V : U { int n; };
+    struct A : virtual V { int n; };
+    struct Aa { int n; };
+    struct B : virtual A, Aa {};
+
+    struct C : virtual A, Aa {};
+
+    struct D : B, C {};
+
+    D d;
+
+    constexpr B *p = &d;
+    constexpr C *q = &d;
+
+    static_assert((void*)p != (void*)q, "");
+    static_assert((A*)p == (A*)q, "");
+    static_assert((Aa*)p != (Aa*)q, "");
+
+    constexpr V *v = p;
+    constexpr V *w = q;
+    constexpr V *x = (A*)p;
+    static_assert(v == w, "");
+    static_assert(v == x, "");
+
+    static_assert((U*)&d == p, "");
+    static_assert((U*)&d == q, "");
+    static_assert((U*)&d == v, "");
+    static_assert((U*)&d == w, "");
+    static_assert((U*)&d == x, "");
+
+    struct X {};
+    struct Y1 : virtual X {};
+    struct Y2 : X {};
+    struct Z : Y1, Y2 {};
+    Z z;
+    static_assert((X*)(Y1*)&z != (X*)(Y2*)&z, "");
+  }
+}
diff --git a/clang/test/AST/ast-dump-expr-json.cpp b/clang/test/AST/ast-dump-expr-json.cpp
@@ -2333,7 +2333,7 @@ void TestNonADLCall3() {
 // CHECK-NEXT:         "kind": "FunctionDecl",
 // CHECK-NEXT:         "name": "operator delete",
 // CHECK-NEXT:         "type": {
-// CHECK-NEXT:          "qualType": "void (void *) noexcept"
+// CHECK-NEXT:          "qualType": "void (void *, unsigned long) noexcept"
 // CHECK-NEXT:         }
 // CHECK-NEXT:        },
 // CHECK-NEXT:        "inner": [

diff --git a/clang/test/AST/ast-dump-expr.cpp b/clang/test/AST/ast-dump-expr.cpp
@@ -164,7 +164,7 @@ void UnaryExpressions(int *p) {
   // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:8> 'int *' lvalue ParmVar 0x{{[^ ]*}} 'p' 'int *'
 
   ::delete p;
-  // CHECK: CXXDeleteExpr 0x{{[^ ]*}} <line:[[@LINE-1]]:3, col:12> 'void' global Function 0x{{[^ ]*}} 'operator delete' 'void (void *) noexcept'
+  // CHECK: CXXDeleteExpr 0x{{[^ ]*}} <line:[[@LINE-1]]:3, col:12> 'void' global Function 0x{{[^ ]*}} 'operator delete' 'void (void *, unsigned long) noexcept'
   // CHECK-NEXT: ImplicitCastExpr
   // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:12> 'int *' lvalue ParmVar 0x{{[^ ]*}} 'p' 'int *'
 

diff --git a/clang/test/AST/ast-dump-stmt-json.cpp b/clang/test/AST/ast-dump-stmt-json.cpp
@@ -994,7 +994,7 @@ void TestDependentGenericSelectionExpr(Ty T) {
 // CHECK-NEXT:       "kind": "FunctionDecl",
 // CHECK-NEXT:       "name": "operator delete",
 // CHECK-NEXT:       "type": {
-// CHECK-NEXT:        "qualType": "void (void *) noexcept"
+// CHECK-NEXT:        "qualType": "void (void *, unsigned long) noexcept"
 // CHECK-NEXT:       }
 // CHECK-NEXT:      },
 // CHECK-NEXT:      "inner": [
@@ -1369,7 +1369,7 @@ void TestDependentGenericSelectionExpr(Ty T) {
 // CHECK-NEXT:       "kind": "FunctionDecl",
 // CHECK-NEXT:       "name": "operator delete",
 // CHECK-NEXT:       "type": {
-// CHECK-NEXT:        "qualType": "void (void *) noexcept"
+// CHECK-NEXT:        "qualType": "void (void *, unsigned long) noexcept"
 // CHECK-NEXT:       }
 // CHECK-NEXT:      },
 // CHECK-NEXT:      "inner": [
@@ -1722,7 +1722,6 @@ void TestDependentGenericSelectionExpr(Ty T) {
 // CHECK-NEXT:   "end": {}
 // CHECK-NEXT:  },
 // CHECK-NEXT:  "isImplicit": true,
-// CHECK-NEXT:  "isUsed": true,
 // CHECK-NEXT:  "name": "operator delete",
 // CHECK-NEXT:  "mangledName": "_ZdlPv",
 // CHECK-NEXT:  "type": {
@@ -1810,6 +1809,126 @@ void TestDependentGenericSelectionExpr(Ty T) {
 // CHECK-NEXT: }
 
 
+// CHECK-NOT: {{^}}Dumping
+// CHECK:  "kind": "FunctionDecl",
+// CHECK-NEXT:  "loc": {},
+// CHECK-NEXT:  "range": {
+// CHECK-NEXT:   "begin": {},
+// CHECK-NEXT:   "end": {}
+// CHECK-NEXT:  },
+// CHECK-NEXT:  "isImplicit": true,
+// CHECK-NEXT:  "isUsed": true,
+// CHECK-NEXT:  "name": "operator delete",
+// CHECK-NEXT:  "mangledName": "_ZdlPvm",
+// CHECK-NEXT:  "type": {
+// CHECK-NEXT:   "qualType": "void (void *, unsigned long) noexcept"
+// CHECK-NEXT:  },
+// CHECK-NEXT:  "inner": [
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "ParmVarDecl",
+// CHECK-NEXT:    "loc": {},
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "isImplicit": true,
+// CHECK-NEXT:    "type": {
+// CHECK-NEXT:     "qualType": "void *"
+// CHECK-NEXT:    }
+// CHECK-NEXT:   },
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "ParmVarDecl",
+// CHECK-NEXT:    "loc": {},
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "isImplicit": true,
+// CHECK-NEXT:    "type": {
+// CHECK-NEXT:     "qualType": "unsigned long"
+// CHECK-NEXT:    }
+// CHECK-NEXT:   },
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "VisibilityAttr",
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "implicit": true,
+// CHECK-NEXT:    "visibility": "default"
+// CHECK-NEXT:   }
+// CHECK-NEXT:  ]
+// CHECK-NEXT: }
+
+// CHECK-NOT: {{^}}Dumping
+// CHECK:  "kind": "FunctionDecl",
+// CHECK-NEXT:  "loc": {},
+// CHECK-NEXT:  "range": {
+// CHECK-NEXT:   "begin": {},
+// CHECK-NEXT:   "end": {}
+// CHECK-NEXT:  },
+// CHECK-NEXT:  "isImplicit": true,
+// CHECK-NEXT:  "name": "operator delete",
+// CHECK-NEXT:  "mangledName": "_ZdlPvmSt11align_val_t",
+// CHECK-NEXT:  "type": {
+// CHECK-NEXT:   "qualType": "void (void *, unsigned long, std::align_val_t) noexcept"
+// CHECK-NEXT:  },
+// CHECK-NEXT:  "inner": [
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "ParmVarDecl",
+// CHECK-NEXT:    "loc": {},
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "isImplicit": true,
+// CHECK-NEXT:    "type": {
+// CHECK-NEXT:     "qualType": "void *"
+// CHECK-NEXT:    }
+// CHECK-NEXT:   },
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "ParmVarDecl",
+// CHECK-NEXT:    "loc": {},
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "isImplicit": true,
+// CHECK-NEXT:    "type": {
+// CHECK-NEXT:     "qualType": "unsigned long"
+// CHECK-NEXT:    }
+// CHECK-NEXT:   },
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "ParmVarDecl",
+// CHECK-NEXT:    "loc": {},
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "isImplicit": true,
+// CHECK-NEXT:    "type": {
+// CHECK-NEXT:     "qualType": "std::align_val_t"
+// CHECK-NEXT:    }
+// CHECK-NEXT:   },
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "VisibilityAttr",
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "implicit": true,
+// CHECK-NEXT:    "visibility": "default"
+// CHECK-NEXT:   }
+// CHECK-NEXT:  ]
+// CHECK-NEXT: }
+
 // CHECK-NOT: {{^}}Dumping
 // CHECK:  "kind": "FunctionDecl",
 // CHECK-NEXT:  "loc": {},
@@ -1906,6 +2025,125 @@ void TestDependentGenericSelectionExpr(Ty T) {
 // CHECK-NEXT: }
 
 
+// CHECK-NOT: {{^}}Dumping
+// CHECK:  "kind": "FunctionDecl",
+// CHECK-NEXT:  "loc": {},
+// CHECK-NEXT:  "range": {
+// CHECK-NEXT:   "begin": {},
+// CHECK-NEXT:   "end": {}
+// CHECK-NEXT:  },
+// CHECK-NEXT:  "isImplicit": true,
+// CHECK-NEXT:  "name": "operator delete[]",
+// CHECK-NEXT:  "mangledName": "_ZdaPvm",
+// CHECK-NEXT:  "type": {
+// CHECK-NEXT:   "qualType": "void (void *, unsigned long) noexcept"
+// CHECK-NEXT:  },
+// CHECK-NEXT:  "inner": [
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "ParmVarDecl",
+// CHECK-NEXT:    "loc": {},
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "isImplicit": true,
+// CHECK-NEXT:    "type": {
+// CHECK-NEXT:     "qualType": "void *"
+// CHECK-NEXT:    }
+// CHECK-NEXT:   },
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "ParmVarDecl",
+// CHECK-NEXT:    "loc": {},
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "isImplicit": true,
+// CHECK-NEXT:    "type": {
+// CHECK-NEXT:     "qualType": "unsigned long"
+// CHECK-NEXT:    }
+// CHECK-NEXT:   },
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "VisibilityAttr",
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "implicit": true,
+// CHECK-NEXT:    "visibility": "default"
+// CHECK-NEXT:   }
+// CHECK-NEXT:  ]
+// CHECK-NEXT: }
+
+// CHECK-NOT: {{^}}Dumping
+// CHECK:  "kind": "FunctionDecl",
+// CHECK-NEXT:  "loc": {},
+// CHECK-NEXT:  "range": {
+// CHECK-NEXT:   "begin": {},
+// CHECK-NEXT:   "end": {}
+// CHECK-NEXT:  },
+// CHECK-NEXT:  "isImplicit": true,
+// CHECK-NEXT:  "name": "operator delete[]",
+// CHECK-NEXT:  "mangledName": "_ZdaPvmSt11align_val_t",
+// CHECK-NEXT:  "type": {
+// CHECK-NEXT:   "qualType": "void (void *, unsigned long, std::align_val_t) noexcept"
+// CHECK-NEXT:  },
+// CHECK-NEXT:  "inner": [
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "ParmVarDecl",
+// CHECK-NEXT:    "loc": {},
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "isImplicit": true,
+// CHECK-NEXT:    "type": {
+// CHECK-NEXT:     "qualType": "void *"
+// CHECK-NEXT:    }
+// CHECK-NEXT:   },
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "ParmVarDecl",
+// CHECK-NEXT:    "loc": {},
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "isImplicit": true,
+// CHECK-NEXT:    "type": {
+// CHECK-NEXT:     "qualType": "unsigned long"
+// CHECK-NEXT:    }
+// CHECK-NEXT:   },
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "ParmVarDecl",
+// CHECK-NEXT:    "loc": {},
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "isImplicit": true,
+// CHECK-NEXT:    "type": {
+// CHECK-NEXT:     "qualType": "std::align_val_t"
+// CHECK-NEXT:    }
+// CHECK-NEXT:   },
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "VisibilityAttr",
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {},
+// CHECK-NEXT:     "end": {}
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "implicit": true,
+// CHECK-NEXT:    "visibility": "default"
+// CHECK-NEXT:   }
+// CHECK-NEXT:  ]
+// CHECK-NEXT: }
+
 // CHECK-NOT: {{^}}Dumping
 // CHECK:  "kind": "FunctionTemplateDecl",
 // CHECK-NEXT:  "loc": {

diff --git a/clang/test/Analysis/cxxnewexpr-callback.cpp b/clang/test/Analysis/cxxnewexpr-callback.cpp
@@ -9,7 +9,7 @@ void free(void *);
 } // namespace std
 
 void *operator new(size_t size) { return std::malloc(size); }
-void operator delete(void *ptr) { std::free(ptr); }
+void operator delete(void *ptr, size_t size) { std::free(ptr); }
 
 struct S {
   S() {}
@@ -49,7 +49,7 @@ void test() {
 // CHECK-NEXT: PostCall (operator delete)
 }
 
-void operator delete(void *ptr) {
+void operator delete(void *ptr, size_t size) {
   std::free(ptr);
 // CHECK-NO-INLINE-NEXT: PreCall (std::free)
 // CHECK-NO-INLINE-NEXT: PostCall (std::free)

diff --git a/clang/test/CXX/basic/basic.stc/basic.stc.dynamic/basic.stc.dynamic.deallocation/p2.cpp b/clang/test/CXX/basic/basic.stc/basic.stc.dynamic/basic.stc.dynamic.deallocation/p2.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -std=c++1z -fsized-deallocation -fexceptions -verify %s
+// RUN: %clang_cc1 -std=c++1z -fexceptions -verify %s
 
 using size_t = decltype(sizeof(0));
 

diff --git a/clang/test/CXX/drs/cwg292.cpp b/clang/test/CXX/drs/cwg292.cpp
@@ -1,10 +1,10 @@
-// RUN: %clang_cc1 -std=c++98 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
-// RUN: %clang_cc1 -std=c++11 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
-// RUN: %clang_cc1 -std=c++14 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
-// RUN: %clang_cc1 -std=c++17 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
-// RUN: %clang_cc1 -std=c++20 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
-// RUN: %clang_cc1 -std=c++23 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
-// RUN: %clang_cc1 -std=c++2c %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
+// RUN: %clang_cc1 -std=c++98 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK,CXX98-11
+// RUN: %clang_cc1 -std=c++11 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK,CXX98-11
+// RUN: %clang_cc1 -std=c++14 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK,SINCE-CXX14
+// RUN: %clang_cc1 -std=c++17 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK,SINCE-CXX14
+// RUN: %clang_cc1 -std=c++20 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK,SINCE-CXX14
+// RUN: %clang_cc1 -std=c++23 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK,SINCE-CXX14
+// RUN: %clang_cc1 -std=c++2c %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK,SINCE-CXX14
 
 namespace cwg292 { // cwg292: 2.9
 
@@ -23,7 +23,8 @@ void f() {
 // CHECK:         invoke {{.*}} i32 @cwg292::g()()
 // CHECK-NEXT:           to {{.*}} unwind label %lpad
 // CHECK-LABEL: lpad:
-// CHECK:         call void @operator delete(void*)(ptr {{.*}} %[[CALL]])
+// CXX98-11:      call void @operator delete(void*)(ptr {{.*}} %[[CALL]])
+// SINCE-CXX14:   call void @operator delete(void*, unsigned long)(ptr {{.*}} %[[CALL]], i64 noundef 1)
 // CHECK-LABEL: eh.resume:
 // CHECK-LABEL: }
 

diff --git a/clang/test/CXX/expr/expr.unary/expr.new/p14.cpp b/clang/test/CXX/expr/expr.unary/expr.new/p14.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -std=c++1z -fsized-deallocation -fexceptions %s -verify
+// RUN: %clang_cc1 -std=c++1z -fexceptions %s -verify
 
 using size_t = decltype(sizeof(0));
 namespace std { enum class align_val_t : size_t {}; }

diff --git a/clang/test/CodeGen/X86/ms-x86-intrinsics.c b/clang/test/CodeGen/X86/ms-x86-intrinsics.c
@@ -48,7 +48,7 @@ long long test__readfsqword(unsigned long Offset) {
 __int64 test__emul(int a, int b) {
   return __emul(a, b);
 }
-// CHECK-LABEL: define dso_local i64 @test__emul(i32 noundef %a, i32 noundef %b)
+// CHECK-LABEL: define dso_local range(i64 -4611686016279904256, 4611686018427387905) i64 @test__emul(i32 noundef %a, i32 noundef %b)
 // CHECK: [[X:%[0-9]+]] = sext i32 %a to i64
 // CHECK: [[Y:%[0-9]+]] = sext i32 %b to i64
 // CHECK: [[RES:%[0-9]+]] = mul nsw i64 [[Y]], [[X]]
@@ -57,7 +57,7 @@ __int64 test__emul(int a, int b) {
 unsigned __int64 test__emulu(unsigned int a, unsigned int b) {
   return __emulu(a, b);
 }
-// CHECK-LABEL: define dso_local i64 @test__emulu(i32 noundef %a, i32 noundef %b)
+// CHECK-LABEL: define dso_local range(i64 0, -8589934590) i64 @test__emulu(i32 noundef %a, i32 noundef %b)
 // CHECK: [[X:%[0-9]+]] = zext i32 %a to i64
 // CHECK: [[Y:%[0-9]+]] = zext i32 %b to i64
 // CHECK: [[RES:%[0-9]+]] = mul nuw i64 [[Y]], [[X]]
@@ -108,13 +108,13 @@ long long test__readgsqword(unsigned long Offset) {
 __int64 test__mulh(__int64 a, __int64 b) {
   return __mulh(a, b);
 }
-// CHECK-X64-LABEL: define dso_local i64 @test__mulh(i64 noundef %a, i64 noundef %b)
+// CHECK-X64-LABEL: define dso_local range(i64 -4611686018427387904, 4611686018427387905) i64 @test__mulh(i64 noundef %a, i64 noundef %b)
 // CHECK-X64: = mul nsw i128 %
 
 unsigned __int64 test__umulh(unsigned __int64 a, unsigned __int64 b) {
   return __umulh(a, b);
 }
-// CHECK-X64-LABEL: define dso_local i64 @test__umulh(i64 noundef %a, i64 noundef %b)
+// CHECK-X64-LABEL: define dso_local range(i64 0, -1) i64 @test__umulh(i64 noundef %a, i64 noundef %b)
 // CHECK-X64: = mul nuw i128 %
 
 __int64 test_mul128(__int64 Multiplier,

diff --git a/clang/test/CodeGen/aarch64-sve2p1-intrinsics/acle_sve2p1_fp_reduce.c b/clang/test/CodeGen/aarch64-sve2p1-intrinsics/acle_sve2p1_fp_reduce.c
@@ -20,13 +20,13 @@
 // CHECK-LABEL: @test_svaddqv_f16(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    [[TMP0:%.*]] = tail call <vscale x 8 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv8i1(<vscale x 16 x i1> [[PG:%.*]])
-// CHECK-NEXT:    [[TMP1:%.*]] = tail call <8 x half> @llvm.aarch64.sve.addqv.v8f16.nxv8f16(<vscale x 8 x i1> [[TMP0]], <vscale x 8 x half> [[OP:%.*]])
+// CHECK-NEXT:    [[TMP1:%.*]] = tail call <8 x half> @llvm.aarch64.sve.faddqv.v8f16.nxv8f16(<vscale x 8 x i1> [[TMP0]], <vscale x 8 x half> [[OP:%.*]])
 // CHECK-NEXT:    ret <8 x half> [[TMP1]]
 //
 // CPP-CHECK-LABEL: @_Z16test_svaddqv_f16u10__SVBool_tu13__SVFloat16_t(
 // CPP-CHECK-NEXT:  entry:
 // CPP-CHECK-NEXT:    [[TMP0:%.*]] = tail call <vscale x 8 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv8i1(<vscale x 16 x i1> [[PG:%.*]])
-// CPP-CHECK-NEXT:    [[TMP1:%.*]] = tail call <8 x half> @llvm.aarch64.sve.addqv.v8f16.nxv8f16(<vscale x 8 x i1> [[TMP0]], <vscale x 8 x half> [[OP:%.*]])
+// CPP-CHECK-NEXT:    [[TMP1:%.*]] = tail call <8 x half> @llvm.aarch64.sve.faddqv.v8f16.nxv8f16(<vscale x 8 x i1> [[TMP0]], <vscale x 8 x half> [[OP:%.*]])
 // CPP-CHECK-NEXT:    ret <8 x half> [[TMP1]]
 //
 float16x8_t test_svaddqv_f16(svbool_t pg, svfloat16_t op)
@@ -37,13 +37,13 @@ float16x8_t test_svaddqv_f16(svbool_t pg, svfloat16_t op)
 // CHECK-LABEL: @test_svaddqv_f32(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    [[TMP0:%.*]] = tail call <vscale x 4 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv4i1(<vscale x 16 x i1> [[PG:%.*]])
-// CHECK-NEXT:    [[TMP1:%.*]] = tail call <4 x float> @llvm.aarch64.sve.addqv.v4f32.nxv4f32(<vscale x 4 x i1> [[TMP0]], <vscale x 4 x float> [[OP:%.*]])
+// CHECK-NEXT:    [[TMP1:%.*]] = tail call <4 x float> @llvm.aarch64.sve.faddqv.v4f32.nxv4f32(<vscale x 4 x i1> [[TMP0]], <vscale x 4 x float> [[OP:%.*]])
 // CHECK-NEXT:    ret <4 x float> [[TMP1]]
 //
 // CPP-CHECK-LABEL: @_Z16test_svaddqv_f32u10__SVBool_tu13__SVFloat32_t(
 // CPP-CHECK-NEXT:  entry:
 // CPP-CHECK-NEXT:    [[TMP0:%.*]] = tail call <vscale x 4 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv4i1(<vscale x 16 x i1> [[PG:%.*]])
-// CPP-CHECK-NEXT:    [[TMP1:%.*]] = tail call <4 x float> @llvm.aarch64.sve.addqv.v4f32.nxv4f32(<vscale x 4 x i1> [[TMP0]], <vscale x 4 x float> [[OP:%.*]])
+// CPP-CHECK-NEXT:    [[TMP1:%.*]] = tail call <4 x float> @llvm.aarch64.sve.faddqv.v4f32.nxv4f32(<vscale x 4 x i1> [[TMP0]], <vscale x 4 x float> [[OP:%.*]])
 // CPP-CHECK-NEXT:    ret <4 x float> [[TMP1]]
 //
 float32x4_t test_svaddqv_f32(svbool_t pg, svfloat32_t op)
@@ -54,13 +54,13 @@ float32x4_t test_svaddqv_f32(svbool_t pg, svfloat32_t op)
 // CHECK-LABEL: @test_svaddqv_f64(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    [[TMP0:%.*]] = tail call <vscale x 2 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv2i1(<vscale x 16 x i1> [[PG:%.*]])
-// CHECK-NEXT:    [[TMP1:%.*]] = tail call <2 x double> @llvm.aarch64.sve.addqv.v2f64.nxv2f64(<vscale x 2 x i1> [[TMP0]], <vscale x 2 x double> [[OP:%.*]])
+// CHECK-NEXT:    [[TMP1:%.*]] = tail call <2 x double> @llvm.aarch64.sve.faddqv.v2f64.nxv2f64(<vscale x 2 x i1> [[TMP0]], <vscale x 2 x double> [[OP:%.*]])
 // CHECK-NEXT:    ret <2 x double> [[TMP1]]
 //
 // CPP-CHECK-LABEL: @_Z16test_svaddqv_f64u10__SVBool_tu13__SVFloat64_t(
 // CPP-CHECK-NEXT:  entry:
 // CPP-CHECK-NEXT:    [[TMP0:%.*]] = tail call <vscale x 2 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv2i1(<vscale x 16 x i1> [[PG:%.*]])
-// CPP-CHECK-NEXT:    [[TMP1:%.*]] = tail call <2 x double> @llvm.aarch64.sve.addqv.v2f64.nxv2f64(<vscale x 2 x i1> [[TMP0]], <vscale x 2 x double> [[OP:%.*]])
+// CPP-CHECK-NEXT:    [[TMP1:%.*]] = tail call <2 x double> @llvm.aarch64.sve.faddqv.v2f64.nxv2f64(<vscale x 2 x i1> [[TMP0]], <vscale x 2 x double> [[OP:%.*]])
 // CPP-CHECK-NEXT:    ret <2 x double> [[TMP1]]
 //
 float64x2_t test_svaddqv_f64(svbool_t pg, svfloat64_t op)

diff --git a/clang/test/CodeGen/attr-counted-by.c b/clang/test/CodeGen/attr-counted-by.c
diff --git a/clang/test/CodeGen/ms-mixed-ptr-sizes.c b/clang/test/CodeGen/ms-mixed-ptr-sizes.c
@@ -49,7 +49,7 @@ void test_other(struct Foo *f, __attribute__((address_space(10))) int *i) {
 }
 
 int test_compare1(int *__ptr32 __uptr i, int *__ptr64 j) {
-  // ALL-LABEL: define dso_local noundef i32 @test_compare1
+  // ALL-LABEL: define dso_local range(i32 0, 2) i32 @test_compare1
   // X64: %{{.+}} = addrspacecast ptr %j to ptr addrspace(271)
   // X64: %cmp = icmp eq ptr addrspace(271) %{{.+}}, %i
   // X86: %{{.+}} = addrspacecast ptr addrspace(272) %j to ptr addrspace(271)
@@ -58,7 +58,7 @@ int test_compare1(int *__ptr32 __uptr i, int *__ptr64 j) {
 }
 
 int test_compare2(int *__ptr32 __sptr i, int *__ptr64 j) {
-  // ALL-LABEL: define dso_local noundef i32 @test_compare2
+  // ALL-LABEL: define dso_local range(i32 0, 2) i32 @test_compare2
   // X64: %{{.+}} = addrspacecast ptr %j to ptr addrspace(270)
   // X64: %cmp = icmp eq ptr addrspace(270) %{{.+}}, %i
   // X86: %{{.+}} = addrspacecast ptr addrspace(272) %j to ptr
@@ -67,7 +67,7 @@ int test_compare2(int *__ptr32 __sptr i, int *__ptr64 j) {
 }
 
 int test_compare3(int *__ptr32 __uptr i, int *__ptr64 j) {
-  // ALL-LABEL: define dso_local noundef i32 @test_compare3
+  // ALL-LABEL: define dso_local range(i32 0, 2) i32 @test_compare3
   // X64: %{{.+}} = addrspacecast ptr addrspace(271) %i to ptr
   // X64: %cmp = icmp eq ptr %{{.+}}, %j
   // X86: %{{.+}} = addrspacecast ptr addrspace(271) %i to ptr addrspace(272)
@@ -76,7 +76,7 @@ int test_compare3(int *__ptr32 __uptr i, int *__ptr64 j) {
 }
 
 int test_compare4(int *__ptr32 __sptr i, int *__ptr64 j) {
-  // ALL-LABEL: define dso_local noundef i32 @test_compare4
+  // ALL-LABEL: define dso_local range(i32 0, 2) i32 @test_compare4
   // X64: %{{.+}} = addrspacecast ptr addrspace(270) %i to ptr
   // X64: %cmp = icmp eq ptr %{{.+}}, %j
   // X86: %{{.+}} = addrspacecast ptr %i to ptr addrspace(272)

diff --git a/clang/test/CodeGenCXX/cxx1y-sized-deallocation.cpp b/clang/test/CodeGenCXX/cxx1y-sized-deallocation.cpp
@@ -1,12 +1,12 @@
 // Check that delete exprs call the sized deallocation function if
-// -fsized-deallocation is passed in both C++11 and C++14.
+// -fsized-deallocation is passed in C++11 or std >= C++14.
 // RUN: %clang_cc1 -std=c++11 -fsized-deallocation %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s
-// RUN: %clang_cc1 -std=c++14 -fsized-deallocation %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s
+// RUN: %clang_cc1 -std=c++14 %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s
 
-// Check that we don't used sized deallocation without -fsized-deallocation and
-// C++14.
+// Check that we don't used sized deallocation with -fno-sized-deallocation or without C++14.
 // RUN: %clang_cc1 -std=c++11 %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s --check-prefix=CHECK-UNSIZED
-// RUN: %clang_cc1 -std=c++14 %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s --check-prefix=CHECK-UNSIZED
+// RUN: %clang_cc1 -std=c++14 %s -emit-llvm -triple x86_64-linux-gnu -fno-sized-deallocation -o - \
+// RUN:     | FileCheck %s --check-prefix=CHECK-UNSIZED
 
 // CHECK-UNSIZED-NOT: _ZdlPvm
 // CHECK-UNSIZED-NOT: _ZdaPvm

diff --git a/clang/test/CodeGenCXX/cxx1z-aligned-allocation.cpp b/clang/test/CodeGenCXX/cxx1z-aligned-allocation.cpp
@@ -1,10 +1,10 @@
 // Check that delete exprs call aligned (de)allocation functions if
 // -faligned-allocation is passed in both C++11 and C++14.
 // RUN: %clang_cc1 -std=c++11 -fexceptions -fsized-deallocation -faligned-allocation %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s
-// RUN: %clang_cc1 -std=c++14 -fexceptions -fsized-deallocation -faligned-allocation %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s
-// RUN: %clang_cc1 -std=c++1z -fexceptions -fsized-deallocation %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s
+// RUN: %clang_cc1 -std=c++14 -fexceptions -faligned-allocation %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s
+// RUN: %clang_cc1 -std=c++1z -fexceptions %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s
 
-// RUN: %clang_cc1 -std=c++1z -fexceptions -fsized-deallocation %s -emit-llvm -triple x86_64-windows-msvc -o - | FileCheck %s --check-prefix=CHECK-MS
+// RUN: %clang_cc1 -std=c++1z -fexceptions %s -emit-llvm -triple x86_64-windows-msvc -o - | FileCheck %s --check-prefix=CHECK-MS
 
 // Check that we don't used aligned (de)allocation without -faligned-allocation or C++1z.
 // RUN: %clang_cc1 -std=c++14 -DUNALIGNED -fexceptions %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s --check-prefix=CHECK-UNALIGNED

diff --git a/clang/test/CodeGenCXX/cxx2a-destroying-delete.cpp b/clang/test/CodeGenCXX/cxx2a-destroying-delete.cpp
@@ -108,10 +108,10 @@ struct J {
 // CHECK-MSABI-LABEL: define {{.*}}@"?j@@
 J *j() {
   // CHECK-ITANIUM: invoke {{.*}}@_ZN1JC1Ev(
-  // CHECK-ITANIUM: call {{.*}}@_ZdlPv(
+  // CHECK-ITANIUM: call {{.*}}@_ZdlPvm(
   // CHECK-NOT: }
   // CHECK-MSABI: invoke {{.*}}@"??0J@@Q{{AE|EAA}}@XZ"(
-  // CHECK-MSABI: call {{.*}}@"??3@YAXP{{E?}}AX@Z"(
+  // CHECK-MSABI: call {{.*}}@"??3@YAXP{{E?}}AX{{I|_K}}@Z"(
   return new J;
   // CHECK: }
 }

diff --git a/clang/test/CodeGenCXX/delete-two-arg.cpp b/clang/test/CodeGenCXX/delete-two-arg.cpp
@@ -43,7 +43,9 @@ namespace test2 {
     // CHECK-NEXT: br i1 [[T1]],
     // CHECK: [[T3:%.*]] = getelementptr inbounds i8, ptr [[T0]], i32 -4
     // CHECK-NEXT: [[T5:%.*]] = load i32, ptr [[T3]]
-    // CHECK-NEXT: call void @_ZdaPv(ptr noundef [[T3]])
+    // CHECK-NEXT: [[T6:%.*]] = mul i32 4, [[T5]]
+    // CHECK-NEXT: [[T7:%.*]] = add i32 [[T6]], 4
+    // CHECK-NEXT: call void @_ZdaPvj(ptr noundef [[T3]], i32 noundef [[T7]])
     // CHECK-NEXT: br label
     ::delete[] p;
   }

diff --git a/clang/test/CodeGenCXX/delete.cpp b/clang/test/CodeGenCXX/delete.cpp
@@ -16,7 +16,7 @@ void t3(S *s) {
   // CHECK: icmp {{.*}} null
   // CHECK: br i1
 
-  // CHECK: call void @_ZdlPv
+  // CHECK: call void @_ZdlPvm
 
   // Check the delete is inside the 'if !null' check unless we're optimizing
   // for size. FIXME: We could omit the branch entirely in this case.
@@ -35,7 +35,7 @@ struct T {
 void t4(T *t) {
   // CHECK: call void @_ZN1TD1Ev
   // CHECK-SIZE-NEXT: br
-  // CHECK: call void @_ZdlPv
+  // CHECK: call void @_ZdlPvm
   delete t;
 }
 
@@ -93,14 +93,16 @@ namespace test1 {
     // CHECK-NEXT: call void @_ZN5test11AD1Ev(ptr {{[^,]*}} [[CUR]])
     // CHECK-NEXT: [[ISDONE:%.*]] = icmp eq ptr [[CUR]], [[BEGIN]]
     // CHECK-NEXT: br i1 [[ISDONE]]
-    // CHECK:      call void @_ZdaPv(ptr noundef [[ALLOC]])
+    // CHECK:      [[MUL:%.*]] = mul i64 4, [[COUNT]]
+    // CHECK-NEXT: [[SIZE:%.*]] = add i64 [[MUL]], 8
+    // CHECK-NEXT: call void @_ZdaPvm(ptr noundef [[ALLOC]], i64 noundef [[SIZE]])
   }
 }
 
 namespace test2 {
   // CHECK-LABEL: define{{.*}} void @_ZN5test21fEPb
   void f(bool *b) {
-    // CHECK: call void @_ZdlPv(ptr
+    // CHECK: call void @_ZdlPvm(ptr{{.*}}i64
     delete b;
     // CHECK: call void @_ZdaPv(ptr
     delete [] b;
@@ -137,7 +139,7 @@ namespace test4 {
     // CHECK-NEXT: [[DTOR:%.*]] = load ptr, ptr [[T0]]
     // CHECK-NEXT: call void [[DTOR]](ptr {{[^,]*}} [[OBJ:%.*]])
     //   Call the global operator delete.
-    // CHECK-NEXT: call void @_ZdlPv(ptr noundef [[ALLOCATED]]) [[NUW:#[0-9]+]]
+    // CHECK-NEXT: call void @_ZdlPvm(ptr noundef [[ALLOCATED]], i64 noundef 8) [[NUW:#[0-9]+]]
     ::delete xp;
   }
 }

diff --git a/clang/test/CodeGenCXX/dllimport.cpp b/clang/test/CodeGenCXX/dllimport.cpp
@@ -205,7 +205,7 @@ USEVAR(VarTmpl<ExplicitSpec_Imported>)
 // Functions
 //===----------------------------------------------------------------------===//
 
-// GNU-DAG: declare dso_local void @_ZdlPv(ptr)
+// GNU-DAG: declare dso_local void @_ZdlPv{{j|y}}(ptr, i{{32|64}})
 
 // Import function declaration.
 // MSC-DAG: declare dllimport void @"?decl@@YAXXZ"()
@@ -358,7 +358,7 @@ __declspec(dllimport) void operator delete(void*);
 __declspec(dllimport) inline int *ReferencingImportedNew() { return new int[2]; }
 // MO1-DAG: define available_externally dllimport ptr @"?ReferencingImportedNew@@YAPAHXZ"
 __declspec(dllimport) inline int *ReferencingImportedDelete() { delete (int*)nullptr; }
-// MO1-DAG: define available_externally dllimport ptr @"?ReferencingImportedDelete@@YAPAHXZ"
+// MO1-DAG: declare dllimport ptr @"?ReferencingImportedDelete@@YAPAHXZ"
 USE(ReferencingImportedNew)
 USE(ReferencingImportedDelete)
 struct ClassWithDtor { ~ClassWithDtor() {} };

diff --git a/clang/test/CodeGenCXX/new.cpp b/clang/test/CodeGenCXX/new.cpp
@@ -15,7 +15,7 @@ void t1() {
 }
 
 // CHECK: declare noundef nonnull ptr @_Znwm(i64 noundef) [[ATTR_NOBUILTIN:#[^ ]*]]
-// CHECK: declare void @_ZdlPv(ptr noundef) [[ATTR_NOBUILTIN_NOUNWIND:#[^ ]*]]
+// CHECK: declare void @_ZdlPvm(ptr noundef, i64 noundef) [[ATTR_NOBUILTIN_NOUNWIND:#[^ ]*]]
 // CHECK: declare noundef nonnull ptr @_Znam(i64 noundef) [[ATTR_NOBUILTIN]]
 // CHECK: declare void @_ZdaPv(ptr noundef) [[ATTR_NOBUILTIN_NOUNWIND]]
 
@@ -192,7 +192,7 @@ void f() {
   // CHECK: store i64 200
   delete[] new (nothrow) Alloc[10][20];
   // CHECK: call noalias noundef nonnull ptr @_Znwm
-  // CHECK: call void @_ZdlPv(ptr
+  // CHECK: call void @_ZdlPvm(ptr noundef {{%.*}}, i64 noundef 1)
   delete new bool;
   // CHECK: ret void
 }
@@ -317,7 +317,7 @@ namespace N3664 {
   void f() {
     // CHECK: call noalias noundef nonnull ptr @_Znwm(i64 noundef 4) [[ATTR_BUILTIN_NEW:#[^ ]*]]
     int *p = new int; // expected-note {{allocated with 'new' here}}
-    // CHECK: call void @_ZdlPv({{.*}}) [[ATTR_BUILTIN_DELETE:#[^ ]*]]
+    // CHECK: call void @_ZdlPvm({{.*}}) [[ATTR_BUILTIN_DELETE:#[^ ]*]]
     delete p;
 
     // CHECK: call noalias noundef nonnull ptr @_Znam(i64 noundef 12) [[ATTR_BUILTIN_NEW]]

diff --git a/clang/test/CodeGenCoroutines/coro-aligned-alloc-2.cpp b/clang/test/CodeGenCoroutines/coro-aligned-alloc-2.cpp
@@ -1,9 +1,7 @@
 // Tests that the combination of -fcoro-aligned-allocation and -fsized-deallocation works well.
 // Test the compiler will chose sized deallocation correctly.
-// This is only enabled with `-fsized-deallocation` which is off by default.
 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++20 \
 // RUN:   -fcoro-aligned-allocation -S -emit-llvm %s -o - -disable-llvm-passes \
-// RUN:   -fsized-deallocation \
 // RUN:   | FileCheck %s
 
 #include "Inputs/coroutine.h"

diff --git a/clang/test/CodeGenCoroutines/coro-aligned-alloc.cpp b/clang/test/CodeGenCoroutines/coro-aligned-alloc.cpp
@@ -26,8 +26,9 @@ struct task {
 // CHECK: %[[aligned_new:.+]] = call{{.*}}@_ZnwmSt11align_val_t({{.*}}%[[coro_size]],{{.*}}%[[coro_align]])
 
 // CHECK: coro.free:
+// CHECK: %[[coro_size_for_free:.+]] = call{{.*}}@llvm.coro.size
 // CHECK: %[[coro_align_for_free:.+]] = call{{.*}}@llvm.coro.align
-// CHECK: call void @_ZdlPvSt11align_val_t({{.*}}[[coro_align_for_free]]
+// CHECK: call void @_ZdlPvmSt11align_val_t({{.*}}%[[coro_size_for_free]],{{.*}}%[[coro_align_for_free]])
 
 task f() {
     co_return 43;
@@ -58,8 +59,9 @@ void *operator new(std::size_t, std::align_val_t, std::nothrow_t) noexcept;
 // CHECK: %[[aligned_new:.+]] = call{{.*}}@_ZnwmSt11align_val_tSt9nothrow_t({{.*}}%[[coro_size]],{{.*}}%[[coro_align]])
 
 // CHECK: coro.free:
+// CHECK: %[[coro_size_for_free:.+]] = call{{.*}}@llvm.coro.size
 // CHECK: %[[coro_align_for_free:.+]] = call{{.*}}@llvm.coro.align
-// CHECK: call void @_ZdlPvSt11align_val_t({{.*}}[[coro_align_for_free]]
+// CHECK: call void @_ZdlPvmSt11align_val_t({{.*}}%[[coro_size_for_free]],{{.*}}%[[coro_align_for_free]])
 
 task2 f2() {
     co_return 43;

diff --git a/clang/test/CodeGenCoroutines/coro-alloc.cpp b/clang/test/CodeGenCoroutines/coro-alloc.cpp
@@ -70,7 +70,8 @@ extern "C" void f0(global_new_delete_tag) {
   // CHECK: br i1 %[[NeedDealloc]], label %[[FreeBB:.+]], label %[[Afterwards:.+]]
 
   // CHECK: [[FreeBB]]:
-  // CHECK: call void @_ZdlPv(ptr noundef %[[MEM]])
+  // CHECK: %[[SIZE:.+]] = call i64 @llvm.coro.size.i64()
+  // CHECK: call void @_ZdlPvm(ptr noundef %[[MEM]], i64 noundef %[[SIZE]])
   // CHECK: br label %[[Afterwards]]
 
   // CHECK: [[Afterwards]]:
@@ -99,7 +100,8 @@ extern "C" void f1(promise_new_tag ) {
 
   // CHECK: %[[FRAME:.+]] = call ptr @llvm.coro.begin(
   // CHECK: %[[MEM:.+]] = call ptr @llvm.coro.free(token %[[ID]], ptr %[[FRAME]])
-  // CHECK: call void @_ZdlPv(ptr noundef %[[MEM]])
+  // CHECK: %[[SIZE:.+]] = call i64 @llvm.coro.size.i64()
+  // CHECK: call void @_ZdlPvm(ptr noundef %[[MEM]], i64 noundef %[[SIZE]])
   co_return;
 }
 

diff --git a/clang/test/CodeGenCoroutines/coro-cleanup.cpp b/clang/test/CodeGenCoroutines/coro-cleanup.cpp
@@ -84,11 +84,13 @@ void f() {
   // CHECK: [[Cleanup]]:
   // CHECK: call void @_ZNSt16coroutine_traitsIJvEE12promise_typeD1Ev(
   // CHECK: %[[Mem0:.+]] = call ptr @llvm.coro.free(
-  // CHECK: call void @_ZdlPv(ptr noundef %[[Mem0]]
+  // CHECK: %[[SIZE:.+]] = call i64 @llvm.coro.size.i64()
+  // CHECK: call void @_ZdlPvm(ptr noundef %[[Mem0]], i64 noundef %[[SIZE]])
 
   // CHECK: [[Dealloc]]:
   // THROWEND:   %[[Mem:.+]] = call ptr @llvm.coro.free(
-  // THROWEND:   call void @_ZdlPv(ptr noundef %[[Mem]])
+  // THROWEND:   %[[SIZE:.+]] = call i64 @llvm.coro.size.i64()
+  // THROWEND:   call void @_ZdlPvm(ptr noundef %[[Mem]], i64 noundef %[[SIZE]])
 
   co_return;
 }

diff --git a/clang/test/CodeGenCoroutines/coro-dealloc.cpp b/clang/test/CodeGenCoroutines/coro-dealloc.cpp
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++20 \
 // RUN:   -S -emit-llvm %s -o - -disable-llvm-passes \
-// RUN:   -fsized-deallocation \
 // RUN:   | FileCheck %s
 
 #include "Inputs/coroutine.h"
@@ -21,7 +20,6 @@ struct task {
 };
 
 // Test the compiler will chose sized deallocation correctly.
-// This is only enabled with `-fsized-deallocation` which is off by default.
 void operator delete(void *ptr, std::size_t size) noexcept;
 
 // CHECK: define{{.*}}@_Z1fv

diff --git a/clang/test/CodeGenCoroutines/coro-gro.cpp b/clang/test/CodeGenCoroutines/coro-gro.cpp
@@ -51,7 +51,8 @@ int f() {
 
   // CHECK: call void @_ZNSt16coroutine_traitsIiJEE12promise_typeD1Ev(
   // CHECK: %[[Mem:.+]] = call ptr @llvm.coro.free(
-  // CHECK: call void @_ZdlPv(ptr noundef %[[Mem]])
+  // CHECK: %[[SIZE:.+]] = call i64 @llvm.coro.size.i64()
+  // CHECK: call void @_ZdlPvm(ptr noundef %[[Mem]], i64 noundef %[[SIZE]])
 
   // Initialize retval from Gro and destroy Gro
   // Note this also tests delaying initialization when Gro and function return

diff --git a/clang/test/CodeGenCoroutines/pr56919.cpp b/clang/test/CodeGenCoroutines/pr56919.cpp
@@ -111,12 +111,15 @@ Task<void> Bar() { co_await Baz(); }
 
 // CHECK: _Z3Quxv.destroy:{{.*}}
 // CHECK-NEXT: #
-// CHECK-NEXT: jmp	_ZdlPv
+// CHECK-NEXT: movl	$40, %esi
+// CHECK-NEXT: jmp	_ZdlPvm@PLT
 
 // CHECK: _Z3Bazv.destroy:{{.*}}
 // CHECK-NEXT: #
-// CHECK-NEXT: jmp	_ZdlPv
+// CHECK-NEXT: movl	$80, %esi
+// CHECK-NEXT: jmp	_ZdlPvm
 
 // CHECK: _Z3Barv.destroy:{{.*}}
 // CHECK-NEXT: #
-// CHECK-NEXT: jmp	_ZdlPv
+// CHECK-NEXT: movl	$120, %esi
+// CHECK-NEXT: jmp	_ZdlPvm
diff --git a/clang/test/CodeGenObjCXX/msabi-stret-arm64.mm b/clang/test/CodeGenObjCXX/msabi-stret-arm64.mm
@@ -0,0 +1,77 @@
+// RUN: %clang_cc1 -triple aarch64-pc-windows-msvc -fobjc-runtime=gnustep-2.2 -fobjc-dispatch-method=non-legacy -emit-llvm -o - %s | FileCheck %s
+
+// Pass and return for type size <= 8 bytes.
+struct S1 {
+  int a[2];
+};
+
+// Pass and return hfa <= 8 bytes
+struct F1 {
+  float a[2];
+};
+
+// Pass and return for type size > 16 bytes.
+struct S2 {
+  int a[5];
+};
+
+// Pass and return aggregate (of size < 16 bytes) with non-trivial destructor.
+// Sret and inreg: Returned in x0
+struct S3 {
+  int a[3];
+  ~S3();
+};
+S3::~S3() {
+}
+
+
+@interface MsgTest { id isa; } @end
+@implementation MsgTest 
+- (S1) smallS1 {
+  S1 x;
+  x.a[0] = 0;
+  x.a[1] = 1;
+  return x;
+
+}
+- (F1) smallF1 {
+  F1 x;
+  x.a[0] = 0.2f;
+  x.a[1] = 0.5f;
+  return x;
+}
+- (S2) stretS2 {
+  S2 x;
+  for (int i = 0; i < 5; i++) {
+    x.a[i] = i;
+  }
+  return x;
+}
+- (S3) stretInRegS3 {
+  S3 x;
+  for (int i = 0; i < 3; i++) {
+    x.a[i] = i;
+  }
+  return x;
+}
++ (S3) msgTestStretInRegS3 {
+  S3 x;
+  for (int i = 0; i < 3; i++) {
+    x.a[i] = i;
+  }
+  return x;
+}
+@end
+
+void test0(MsgTest *t) {
+    // CHECK: call {{.*}} @objc_msgSend
+    S1 ret = [t smallS1];
+    // CHECK: call {{.*}} @objc_msgSend
+    F1 ret2 = [t smallF1];
+    // CHECK: call {{.*}} @objc_msgSend_stret
+    S2 ret3 = [t stretS2];
+    // CHECK: call {{.*}} @objc_msgSend_stret2
+    S3 ret4 = [t stretInRegS3];
+    // CHECK: call {{.*}} @objc_msgSend_stret2
+    S3 ret5 = [MsgTest msgTestStretInRegS3];
+}
diff --git a/clang/test/Driver/aarch64-mcpu.c b/clang/test/Driver/aarch64-mcpu.c
@@ -64,10 +64,16 @@
 // NEOVERSE-V1: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "neoverse-v1"
 // RUN: %clang --target=aarch64 -mcpu=neoverse-v2  -### -c %s 2>&1 | FileCheck -check-prefix=NEOVERSE-V2 %s
 // NEOVERSE-V2: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "neoverse-v2"
+// RUN: %clang --target=aarch64 -mcpu=neoverse-v3  -### -c %s 2>&1 | FileCheck -check-prefix=NEOVERSE-V3 %s
+// NEOVERSE-V3: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "neoverse-v3"
+// RUN: %clang --target=aarch64 -mcpu=neoverse-v3ae  -### -c %s 2>&1 | FileCheck -check-prefix=NEOVERSE-V3AE %s
+// NEOVERSE-V3AE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "neoverse-v3ae"
 // RUN: %clang --target=aarch64 -mcpu=neoverse-n1 -### -c %s 2>&1 | FileCheck -check-prefix=NEOVERSE-N1 %s
 // NEOVERSE-N1: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "neoverse-n1"
 // RUN: %clang --target=aarch64 -mcpu=neoverse-n2 -### -c %s 2>&1 | FileCheck -check-prefix=NEOVERSE-N2 %s
 // NEOVERSE-N2: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "neoverse-n2"
+// RUN: %clang --target=aarch64 -mcpu=neoverse-n3 -### -c %s 2>&1 | FileCheck -check-prefix=NEOVERSE-N3 %s
+// NEOVERSE-N3: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "neoverse-n3"
 // RUN: %clang --target=aarch64 -mcpu=neoverse-512tvb -### -c %s 2>&1 | FileCheck -check-prefix=NEOVERSE-512TVB %s
 // NEOVERSE-512TVB: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "neoverse-512tvb"
 // RUN: %clang --target=aarch64 -mcpu=cortex-a520 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A520 %s

diff --git a/clang/test/Driver/default-denormal-fp-math.c b/clang/test/Driver/default-denormal-fp-math.c
@@ -3,15 +3,6 @@
 
 // RUN: %clang -### -target x86_64-unknown-linux-gnu --sysroot=%S/Inputs/basic_linux_tree -c %s -v 2>&1 | FileCheck -check-prefix=CHECK-IEEE %s
 
-// crtfastmath enables ftz and daz
-// RUN: %clang -### -target x86_64-unknown-linux-gnu -ffast-math --sysroot=%S/Inputs/basic_linux_tree -c %s -v 2>&1 | FileCheck -check-prefix=CHECK-PRESERVESIGN %s
-
-// crt not linked in with nostartfiles
-// RUN: %clang -### -target x86_64-unknown-linux-gnu -ffast-math -nostartfiles --sysroot=%S/Inputs/basic_linux_tree -c %s -v 2>&1 | FileCheck -check-prefix=CHECK-IEEE %s
-
-// If there's no crtfastmath, don't assume ftz/daz
-// RUN: %clang -### -target x86_64-unknown-linux-gnu -ffast-math --sysroot=/dev/null -c %s -v 2>&1 | FileCheck -check-prefix=CHECK-IEEE %s
-
 // RUN: %clang -### -target x86_64-scei-ps4 -c %s -v 2>&1 | FileCheck -check-prefix=CHECK-PRESERVESIGN %s
 
 // Flag omitted for default

diff --git a/clang/test/Driver/linux-ld.c b/clang/test/Driver/linux-ld.c
@@ -1446,6 +1446,32 @@
 // RUN: %clang --target=i386-unknown-linux -no-pie -### %s -ffast-math \
 // RUN:        --sysroot=%S/Inputs/basic_linux_tree 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-NOCRTFASTMATH %s
+// Don't link crtfastmath.o with -shared
+// RUN: %clang --target=x86_64-unknown-linux -no-pie -### %s -ffast-math -shared \
+// RUN:        --sysroot=%S/Inputs/basic_linux_tree 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-NOCRTFASTMATH %s
+// RUN: %clang --target=x86_64-unknown-linux -no-pie -### %s -Ofast -shared \
+// RUN:        --sysroot=%S/Inputs/basic_linux_tree 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-NOCRTFASTMATH %s
+// Check for effects of -mdaz-ftz
+// RUN: %clang --target=x86_64-unknown-linux -### %s -ffast-math -shared -mdaz-ftz \
+// RUN:        --sysroot=%S/Inputs/basic_linux_tree 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-CRTFASTMATH %s
+// RUN: %clang --target=x86_64-unknown-linux -no-pie -### %s -ffast-math -mdaz-ftz \
+// RUN:        --sysroot=%S/Inputs/basic_linux_tree 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-CRTFASTMATH %s
+// RUN: %clang --target=x86_64-unknown-linux -no-pie -### %s -mdaz-ftz \
+// RUN:        --sysroot=%S/Inputs/basic_linux_tree 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-CRTFASTMATH %s
+// RUN: %clang --target=x86_64-unknown-linux -### %s -ffast-math -shared -mno-daz-ftz \
+// RUN:        --sysroot=%S/Inputs/basic_linux_tree 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-NOCRTFASTMATH %s
+// RUN: %clang --target=x86_64-unknown-linux -no-pie -### %s -ffast-math -mno-daz-ftz \
+// RUN:        --sysroot=%S/Inputs/basic_linux_tree 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-NOCRTFASTMATH %s
+// RUN: %clang --target=x86_64-unknown-linux -no-pie -### %s -mno-daz-ftz \
+// RUN:        --sysroot=%S/Inputs/basic_linux_tree 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-NOCRTFASTMATH %s
 // CHECK-CRTFASTMATH: usr/lib/gcc/x86_64-unknown-linux/10.2.0{{/|\\\\}}crtfastmath.o
 // CHECK-NOCRTFASTMATH-NOT: crtfastmath.o
 

diff --git a/clang/test/Lexer/cxx-features.cpp b/clang/test/Lexer/cxx-features.cpp
@@ -1,17 +1,17 @@
 // RUN: %clang_cc1 -std=c++98 -fcxx-exceptions -verify %s
 // RUN: %clang_cc1 -std=c++11 -fcxx-exceptions -verify %s
-// RUN: %clang_cc1 -std=c++14 -fcxx-exceptions -fsized-deallocation -verify %s
-// RUN: %clang_cc1 -std=c++17 -fcxx-exceptions -fsized-deallocation -verify %s
-// RUN: %clang_cc1 -std=c++20 -fcxx-exceptions -fsized-deallocation -verify %s
-// RUN: %clang_cc1 -std=c++23 -fcxx-exceptions -fsized-deallocation -verify %s
-// RUN: %clang_cc1 -std=c++2c -fcxx-exceptions -fsized-deallocation -verify %s
+// RUN: %clang_cc1 -std=c++14 -fcxx-exceptions -verify %s
+// RUN: %clang_cc1 -std=c++17 -fcxx-exceptions -verify %s
+// RUN: %clang_cc1 -std=c++20 -fcxx-exceptions -verify %s
+// RUN: %clang_cc1 -std=c++23 -fcxx-exceptions -verify %s
+// RUN: %clang_cc1 -std=c++2c -fcxx-exceptions -verify %s
 
 //
-// RUN: %clang_cc1 -std=c++17 -fcxx-exceptions -fsized-deallocation -frelaxed-template-template-args -DRELAXED_TEMPLATE_TEMPLATE_ARGS=1 -verify %s
-// RUN: %clang_cc1 -std=c++17 -fcxx-exceptions -fsized-deallocation -DCONCEPTS_TS=1 -verify %s
-// RUN: %clang_cc1 -std=c++14 -fno-rtti -fno-threadsafe-statics -verify %s -DNO_EXCEPTIONS -DNO_RTTI -DNO_THREADSAFE_STATICS -fsized-deallocation
-// RUN: %clang_cc1 -std=c++14 -fchar8_t -DNO_EXCEPTIONS -DCHAR8_T -verify -fsized-deallocation %s
-// RUN: %clang_cc1 -std=c++2a -fno-char8_t -DNO_EXCEPTIONS -DNO_CHAR8_T -verify -fsized-deallocation %s
+// RUN: %clang_cc1 -std=c++17 -fcxx-exceptions -frelaxed-template-template-args -DRELAXED_TEMPLATE_TEMPLATE_ARGS=1 -verify %s
+// RUN: %clang_cc1 -std=c++17 -fcxx-exceptions -DCONCEPTS_TS=1 -verify %s
+// RUN: %clang_cc1 -std=c++14 -fno-rtti -fno-threadsafe-statics -verify %s -DNO_EXCEPTIONS -DNO_RTTI -DNO_THREADSAFE_STATICS
+// RUN: %clang_cc1 -std=c++14 -fchar8_t -DNO_EXCEPTIONS -DCHAR8_T -verify %s
+// RUN: %clang_cc1 -std=c++2a -fno-char8_t -DNO_EXCEPTIONS -DNO_CHAR8_T -verify %s
 
 // expected-no-diagnostics
 

diff --git a/clang/test/Misc/target-invalid-cpu-note.c b/clang/test/Misc/target-invalid-cpu-note.c
@@ -5,11 +5,11 @@
 
 // RUN: not %clang_cc1 -triple arm64--- -target-cpu not-a-cpu -fsyntax-only %s 2>&1 | FileCheck %s --check-prefix AARCH64
 // AARCH64: error: unknown target CPU 'not-a-cpu'
-// AARCH64-NEXT: note: valid target CPU values are: cortex-a34, cortex-a35, cortex-a53, cortex-a55, cortex-a510, cortex-a520, cortex-a520ae, cortex-a57, cortex-a65, cortex-a65ae, cortex-a72, cortex-a73, cortex-a75, cortex-a76, cortex-a76ae, cortex-a77, cortex-a78, cortex-a78ae, cortex-a78c, cortex-a710, cortex-a715, cortex-a720, cortex-a720ae, cortex-r82, cortex-x1, cortex-x1c, cortex-x2, cortex-x3, cortex-x4, neoverse-e1, neoverse-n1, neoverse-n2, neoverse-512tvb, neoverse-v1, neoverse-v2, cyclone, apple-a7, apple-a8, apple-a9, apple-a10, apple-a11, apple-a12, apple-a13, apple-a14, apple-a15, apple-a16, apple-a17, apple-m1, apple-m2, apple-m3, apple-s4, apple-s5, exynos-m3, exynos-m4, exynos-m5, falkor, saphira, kryo, thunderx2t99, thunderx3t110, thunderx, thunderxt88, thunderxt81, thunderxt83, tsv110, a64fx, carmel, ampere1, ampere1a, ampere1b, cobalt-100, grace{{$}}
+// AARCH64-NEXT: note: valid target CPU values are: cortex-a34, cortex-a35, cortex-a53, cortex-a55, cortex-a510, cortex-a520, cortex-a520ae, cortex-a57, cortex-a65, cortex-a65ae, cortex-a72, cortex-a73, cortex-a75, cortex-a76, cortex-a76ae, cortex-a77, cortex-a78, cortex-a78ae, cortex-a78c, cortex-a710, cortex-a715, cortex-a720, cortex-a720ae, cortex-r82, cortex-x1, cortex-x1c, cortex-x2, cortex-x3, cortex-x4, neoverse-e1, neoverse-n1, neoverse-n2, neoverse-n3, neoverse-512tvb, neoverse-v1, neoverse-v2, neoverse-v3, neoverse-v3ae, cyclone, apple-a7, apple-a8, apple-a9, apple-a10, apple-a11, apple-a12, apple-a13, apple-a14, apple-a15, apple-a16, apple-a17, apple-m1, apple-m2, apple-m3, apple-s4, apple-s5, exynos-m3, exynos-m4, exynos-m5, falkor, saphira, kryo, thunderx2t99, thunderx3t110, thunderx, thunderxt88, thunderxt81, thunderxt83, tsv110, a64fx, carmel, ampere1, ampere1a, ampere1b, cobalt-100, grace{{$}}
 
 // RUN: not %clang_cc1 -triple arm64--- -tune-cpu not-a-cpu -fsyntax-only %s 2>&1 | FileCheck %s --check-prefix TUNE_AARCH64
 // TUNE_AARCH64: error: unknown target CPU 'not-a-cpu'
-// TUNE_AARCH64-NEXT: note: valid target CPU values are: cortex-a34, cortex-a35, cortex-a53, cortex-a55, cortex-a510, cortex-a520, cortex-a520ae, cortex-a57, cortex-a65, cortex-a65ae, cortex-a72, cortex-a73, cortex-a75, cortex-a76, cortex-a76ae, cortex-a77, cortex-a78, cortex-a78ae, cortex-a78c, cortex-a710, cortex-a715, cortex-a720, cortex-a720ae, cortex-r82, cortex-x1, cortex-x1c, cortex-x2, cortex-x3, cortex-x4, neoverse-e1, neoverse-n1, neoverse-n2, neoverse-512tvb, neoverse-v1, neoverse-v2, cyclone, apple-a7, apple-a8, apple-a9, apple-a10, apple-a11, apple-a12, apple-a13, apple-a14, apple-a15, apple-a16, apple-a17, apple-m1, apple-m2, apple-m3, apple-s4, apple-s5, exynos-m3, exynos-m4, exynos-m5, falkor, saphira, kryo, thunderx2t99, thunderx3t110, thunderx, thunderxt88, thunderxt81, thunderxt83, tsv110, a64fx, carmel, ampere1, ampere1a, ampere1b, cobalt-100, grace{{$}}
+// TUNE_AARCH64-NEXT: note: valid target CPU values are: cortex-a34, cortex-a35, cortex-a53, cortex-a55, cortex-a510, cortex-a520, cortex-a520ae, cortex-a57, cortex-a65, cortex-a65ae, cortex-a72, cortex-a73, cortex-a75, cortex-a76, cortex-a76ae, cortex-a77, cortex-a78, cortex-a78ae, cortex-a78c, cortex-a710, cortex-a715, cortex-a720, cortex-a720ae, cortex-r82, cortex-x1, cortex-x1c, cortex-x2, cortex-x3, cortex-x4, neoverse-e1, neoverse-n1, neoverse-n2, neoverse-n3, neoverse-512tvb, neoverse-v1, neoverse-v2, neoverse-v3, neoverse-v3ae, cyclone, apple-a7, apple-a8, apple-a9, apple-a10, apple-a11, apple-a12, apple-a13, apple-a14, apple-a15, apple-a16, apple-a17, apple-m1, apple-m2, apple-m3, apple-s4, apple-s5, exynos-m3, exynos-m4, exynos-m5, falkor, saphira, kryo, thunderx2t99, thunderx3t110, thunderx, thunderxt88, thunderxt81, thunderxt83, tsv110, a64fx, carmel, ampere1, ampere1a, ampere1b, cobalt-100, grace{{$}}
 
 // RUN: not %clang_cc1 -triple i386--- -target-cpu not-a-cpu -fsyntax-only %s 2>&1 | FileCheck %s --check-prefix X86
 // X86: error: unknown target CPU 'not-a-cpu'

diff --git a/clang/test/OpenMP/task_depend_messages.cpp b/clang/test/OpenMP/task_depend_messages.cpp
@@ -62,7 +62,7 @@ int main(int argc, char **argv, char *env[]) {
   #pragma omp task depend(in : argv[ : argc][1 : argc - 1])
   #pragma omp task depend(in : arr[0])
   #pragma omp task depend(depobj:argc) // omp45-error {{expected 'in', 'out', 'inout' or 'mutexinoutset' in OpenMP clause 'depend'}} omp50-error {{expected lvalue expression of 'omp_depend_t' type, not 'int'}} omp51-error {{expected lvalue expression of 'omp_depend_t' type, not 'int'}}
-  #pragma omp task depend(depobj : argv[ : argc][1 : argc - 1]) // omp45-error {{expected 'in', 'out', 'inout' or 'mutexinoutset' in OpenMP clause 'depend'}} omp50-error {{expected lvalue expression of 'omp_depend_t' type, not '<OpenMP array section type>'}} omp51-error {{expected lvalue expression of 'omp_depend_t' type, not '<OpenMP array section type>'}}
+  #pragma omp task depend(depobj : argv[ : argc][1 : argc - 1]) // omp45-error {{expected 'in', 'out', 'inout' or 'mutexinoutset' in OpenMP clause 'depend'}} omp50-error {{expected lvalue expression of 'omp_depend_t' type, not '<array section type>'}} omp51-error {{expected lvalue expression of 'omp_depend_t' type, not '<array section type>'}}
   #pragma omp task depend(depobj : arr[0]) // omp45-error {{expected 'in', 'out', 'inout' or 'mutexinoutset' in OpenMP clause 'depend'}}
   #pragma omp task depend(in : ([ // expected-error {{expected variable name or 'this' in lambda capture list}} expected-error {{expected ')'}} expected-note {{to match this '('}}
   #pragma omp task depend(in : ([] // expected-error {{expected body of lambda expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}

diff --git a/clang/test/PCH/cxx1z-aligned-alloc.cpp b/clang/test/PCH/cxx1z-aligned-alloc.cpp
@@ -1,12 +1,12 @@
 // No PCH:
-// RUN: %clang_cc1 -pedantic -fsized-deallocation -std=c++1z -include %s -verify %s
+// RUN: %clang_cc1 -pedantic -std=c++1z -include %s -verify %s
 //
 // With PCH:
-// RUN: %clang_cc1 -pedantic -fsized-deallocation -std=c++1z -emit-pch %s -o %t
-// RUN: %clang_cc1 -pedantic -fsized-deallocation -std=c++1z -include-pch %t -verify %s
+// RUN: %clang_cc1 -pedantic -std=c++1z -emit-pch %s -o %t
+// RUN: %clang_cc1 -pedantic -std=c++1z -include-pch %t -verify %s
 
-// RUN: %clang_cc1 -pedantic -fsized-deallocation -std=c++1z -emit-pch -fpch-instantiate-templates %s -o %t
-// RUN: %clang_cc1 -pedantic -fsized-deallocation -std=c++1z -include-pch %t -verify %s
+// RUN: %clang_cc1 -pedantic -std=c++1z -emit-pch -fpch-instantiate-templates %s -o %t
+// RUN: %clang_cc1 -pedantic -std=c++1z -include-pch %t -verify %s
 
 // expected-no-diagnostics
 

diff --git a/clang/test/ParserOpenACC/parse-cache-construct.cpp b/clang/test/ParserOpenACC/parse-cache-construct.cpp
@@ -74,12 +74,12 @@ void use() {
   for (int i = 0; i < 10; ++i) {
     // FIXME: Once we have a new array-section type to represent OpenACC as
     // well, change this error message.
-    // expected-error@+2{{OpenMP array section is not allowed here}}
+    // expected-error@+2{{OpenACC sub-array is not allowed here}}
     // expected-warning@+1{{OpenACC construct 'cache' not yet implemented, pragma ignored}}
     #pragma acc cache(Arrs.MemArr[3:4].array[1:4])
   }
   for (int i = 0; i < 10; ++i) {
-    // expected-error@+2{{OpenMP array section is not allowed here}}
+    // expected-error@+2{{OpenACC sub-array is not allowed here}}
     // expected-warning@+1{{OpenACC construct 'cache' not yet implemented, pragma ignored}}
     #pragma acc cache(Arrs.MemArr[3:4].array[4])
   }

diff --git a/clang/test/ParserOpenACC/parse-clauses.c b/clang/test/ParserOpenACC/parse-clauses.c
@@ -482,13 +482,13 @@ void VarListClauses() {
 #pragma acc serial copy(HasMem.MemArr[3].array[1:4]), seq
   for(;;){}
 
-  // expected-error@+3{{OpenMP array section is not allowed here}}
+  // expected-error@+3{{OpenACC sub-array is not allowed here}}
   // expected-warning@+2{{OpenACC clause 'copy' not yet implemented, clause ignored}}
   // expected-warning@+1{{OpenACC clause 'seq' not yet implemented, clause ignored}}
 #pragma acc serial copy(HasMem.MemArr[1:3].array[1]), seq
   for(;;){}
 
-  // expected-error@+3{{OpenMP array section is not allowed here}}
+  // expected-error@+3{{OpenACC sub-array is not allowed here}}
   // expected-warning@+2{{OpenACC clause 'copy' not yet implemented, clause ignored}}
   // expected-warning@+1{{OpenACC clause 'seq' not yet implemented, clause ignored}}
 #pragma acc serial copy(HasMem.MemArr[1:3].array[1:2]), seq

diff --git a/clang/test/Preprocessor/predefined-macros-hlsl.hlsl b/clang/test/Preprocessor/predefined-macros-hlsl.hlsl
@@ -1,14 +1,19 @@
-// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-amplification | FileCheck -match-full-lines %s --check-prefixes=CHECK,AMPLIFICATION
-// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-compute | FileCheck -match-full-lines %s --check-prefixes=CHECK,COMPUTE
-// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-domain | FileCheck -match-full-lines %s --check-prefixes=CHECK,DOMAIN
-// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-geometry | FileCheck -match-full-lines %s --check-prefixes=CHECK,GEOMETRY
-// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-hull | FileCheck -match-full-lines %s --check-prefixes=CHECK,HULL
-// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-library | FileCheck -match-full-lines %s --check-prefixes=CHECK,LIBRARY
-// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-mesh | FileCheck -match-full-lines %s --check-prefixes=CHECK,MESH
-// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-pixel | FileCheck -match-full-lines %s --check-prefixes=CHECK,PIXEL
-// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-vertex | FileCheck -match-full-lines %s --check-prefixes=CHECK,VERTEX
+// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-amplification | FileCheck -match-full-lines %s --check-prefixes=CHECK,AMPLIFICATION,NOHALF
+// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-compute | FileCheck -match-full-lines %s --check-prefixes=CHECK,COMPUTE,NOHALF
+// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-domain | FileCheck -match-full-lines %s --check-prefixes=CHECK,DOMAIN,NOHALF
+// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-geometry | FileCheck -match-full-lines %s --check-prefixes=CHECK,GEOMETRY,NOHALF
+// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-hull | FileCheck -match-full-lines %s --check-prefixes=CHECK,HULL,NOHALF
+// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-library | FileCheck -match-full-lines %s --check-prefixes=CHECK,LIBRARY,NOHALF
+// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-mesh | FileCheck -match-full-lines %s --check-prefixes=CHECK,MESH,NOHALF
+// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-pixel | FileCheck -match-full-lines %s --check-prefixes=CHECK,PIXEL,NOHALF
+// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.0-vertex | FileCheck -match-full-lines %s --check-prefixes=CHECK,VERTEX,NOHALF
+// RUN: %clang_cc1 %s -E -dM -o - -triple dxil-pc-shadermodel6.3-vertex -fnative-half-type | FileCheck -match-full-lines %s --check-prefixes=CHECK,VERTEX,HALF
+
+// HALF: #define __HLSL_ENABLE_16_BIT 1
+// NOHALF-NOT: __HLSL_ENABLE_16_BIT
 
 // CHECK: #define __HLSL_VERSION 2021
+
 // CHECK: #define __SHADER_STAGE_AMPLIFICATION 14
 // CHECK: #define __SHADER_STAGE_COMPUTE 5
 // CHECK: #define __SHADER_STAGE_DOMAIN 4

diff --git a/clang/test/SemaCXX/MicrosoftExtensions.cpp b/clang/test/SemaCXX/MicrosoftExtensions.cpp
@@ -571,11 +571,17 @@ class PR34109_class {
   virtual ~PR34109_class() {}
 };
 
+#if !defined(__cpp_sized_deallocation)
 void operator delete(void *) throw();
 // expected-note@-1 {{previous declaration is here}}
 __declspec(dllexport) void operator delete(void *) throw();
 // expected-error@-1  {{redeclaration of 'operator delete' cannot add 'dllexport' attribute}}
-
+#else
+void operator delete(void *, unsigned int) throw();
+// expected-note@-1 {{previous declaration is here}}
+__declspec(dllexport) void operator delete(void *, unsigned int) throw();
+// expected-error@-1  {{redeclaration of 'operator delete' cannot add 'dllexport' attribute}}
+#endif
 void PR34109(int* a) {
   delete a;
 }

diff --git a/clang/test/SemaCXX/builtin-operator-new-delete.cpp b/clang/test/SemaCXX/builtin-operator-new-delete.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -std=c++1z -fsyntax-only -verify %s
+// RUN: %clang_cc1 -std=c++1z -fno-sized-deallocation -fsyntax-only -verify %s
 // RUN: %clang_cc1 -std=c++03 -fsyntax-only -verify %s
 // RUN: %clang_cc1 -std=c++03 -faligned-allocation -fsyntax-only -verify %s
 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s

diff --git a/clang/test/SemaCXX/cxx1y-sized-deallocation.cpp b/clang/test/SemaCXX/cxx1y-sized-deallocation.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -std=c++1y -verify %s -fsized-deallocation -fexceptions -fcxx-exceptions
+// RUN: %clang_cc1 -std=c++1y -verify %s -fexceptions -fcxx-exceptions
 
 using size_t = decltype(sizeof(0));
 void operator delete(void *, size_t) noexcept;   // expected-note {{'operator delete' declared here}}

diff --git a/clang/test/SemaCXX/unavailable_aligned_allocation.cpp b/clang/test/SemaCXX/unavailable_aligned_allocation.cpp
@@ -75,7 +75,7 @@ void testOveraligned() {
 // expected-error-re@-22 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is {{only|not}} available on}}
 // expected-note@-23 {{if you supply your own aligned allocation functions}}
 
-// expected-error-re@-24 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is {{only|not}} available on}}
+// expected-error-re@-24 {{aligned deallocation function of type 'void (void *, std::size_t, std::align_val_t) noexcept' is {{only|not}} available on}}
 // expected-note@-25 {{if you supply your own aligned allocation functions}}
 
 // expected-error-re@-26 {{aligned allocation function of type 'void *(std::size_t, std::align_val_t, const std::nothrow_t &) noexcept' is {{only|not}} available on}}
@@ -143,19 +143,19 @@ OveralignedS2::~OveralignedS2() {}
 // expected-no-diagnostics
 #else
 #if defined(IOS)
-// expected-error@-6 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is only available on iOS 11 or newer}}}
+// expected-error@-6 {{aligned deallocation function of type 'void (void *, std::size_t, std::align_val_t) noexcept' is only available on iOS 11 or newer}}}
 // expected-note@-7 {{if you supply your own aligned allocation functions}}
 #elif defined(TVOS)
-// expected-error@-9 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is only available on tvOS 11 or newer}}}
+// expected-error@-9 {{aligned deallocation function of type 'void (void *, std::size_t, std::align_val_t) noexcept' is only available on tvOS 11 or newer}}}
 // expected-note@-10 {{if you supply your own aligned allocation functions}}
 #elif defined(WATCHOS)
-// expected-error@-12 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is only available on watchOS 4 or newer}}}
+// expected-error@-12 {{aligned deallocation function of type 'void (void *, std::size_t, std::align_val_t) noexcept' is only available on watchOS 4 or newer}}}
 // expected-note@-13 {{if you supply your own aligned allocation functions}}
 #elif defined(MACOS)
-// expected-error@-15 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is only available on macOS 10.13 or newer}}}
+// expected-error@-15 {{aligned deallocation function of type 'void (void *, std::size_t, std::align_val_t) noexcept' is only available on macOS 10.13 or newer}}}
 // expected-note@-16 {{if you supply your own aligned allocation functions}}
 #elif defined(ZOS)
-// expected-error@-18 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is not available on z/OS}}}
+// expected-error@-18 {{aligned deallocation function of type 'void (void *, std::size_t, std::align_val_t) noexcept' is not available on z/OS}}}
 // expected-note@-19 {{if you supply your own aligned allocation functions}}
 #endif
 #endif
@@ -209,6 +209,9 @@ void *operator new(std::size_t __sz, std::align_val_t) {
 void operator delete(void *p, std::align_val_t) {
 }
 
+void operator delete(void *p, std::size_t __sz, std::align_val_t) {
+}
+
 void testOveraligned2() {
   auto p = new ((std::align_val_t)8) OveralignedS;
   delete p;

diff --git a/clang/tools/clang-installapi/Options.cpp b/clang/tools/clang-installapi/Options.cpp
@@ -594,9 +594,7 @@ getInterfaceFile(const StringRef Filename) {
   std::unique_ptr<InterfaceFile> IF;
   switch (identify_magic(Buffer->getBuffer())) {
   case file_magic::macho_dynamically_linked_shared_lib:
-    LLVM_FALLTHROUGH;
   case file_magic::macho_dynamically_linked_shared_lib_stub:
-    LLVM_FALLTHROUGH;
   case file_magic::macho_universal_binary:
     return DylibReader::get(Buffer->getMemBufferRef());
     break;